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Sparco ADV XT Carbon Racing Seat The Sparco ADV XT is an extremely strong, ultra-light weight carbon fiber seat designed to pass the FIA’s highest seat rating, FIA 8862-2009. This means the Sparco ADV XT has been tested to an impact of approximately 70G. This rating is required for GT racing, and the ADV XT was specially designed with a more relaxed, comfortable driving position for GT cockpits. With strength at the top of its class, the ADV XT can withstand over 6,600 lbs. of lateral force. The ADV XT has an energy absorbing system in the areas subjected to the highest stress to protect the driver. The entire seat is covered in self-extinguishing fabric, plus a special non-slip fabric in the shoulders and seat area. The Sparco ADV XT is FIA approved when installed with Sparco 004902 side-mount brackets. Sparco ADV XT Carbon Racing Seat Details: Ultra-light weight carbon fiber construction FIA 8862-2009 approved Tested to an impact of 70G Designed for GT cockpits with more relaxed driver position HANS device compatible Fire retardant fabric Special non-slip fabric Racing Seat Dimensions:

Sparco Racing Seats ADV Elite Carbon The Sparco ADV Elite is an extremely strong, ultra-light weight carbon fiber seat designed to pass the FIA’s highest seat rating FIA 8862-2009. This means that the ADV Elite has been tested to an impact of approximately 70G. This rating is required for WRC racing, and the ADV Elite was specially designed with an upright driving position preferred by rally drivers. In addition to the Sparco ADV Elite's rally driving position, the outer dimensions have been reduced to fit into typically smaller WRC cockpits. With strength at the top of its class, the ADV Elite can withstand over 6,600 lbs. of lateral force. The ADV Elite has an energy absorbing system in the areas subjected to the highest stress to protect the driver. The entire seat is covered in self-extinguishing fabric and special non-slip fabric in the shoulders and seat area. Sparco ADV Elite Carbon Racing Seat Details: Ultra-light weight Carbon Fiber construction FIA 8862-2009 approved Testing to an impact of 70G Designed for WRC Rally cockpits & driver position Hans device compatible Fire retardant fabric Special non-slip fabric Racing Seat Dimensions:

Racetech RT9119 Lightweight Racing Seat Building on the success of Racetech's 129 series racing seats, the Racetech RT9119 racing seat offers the same ergonomic form and incredible features in a lighter, more protective package. Used by many professional race teams at both the national and international levels, this is the lightweight version using a precise combination of carbon and Kevlar hybrid weave to achieve a shell weight as low as 9.9 lbs. (4.5 kg). The Racetech RT9119 is available in four shell sizes: Standard, Wide, Tall, and Wide & Tall. You can further customize your seat with low-profile base cushions or by adding side cushions for support in the thigh area. The Racetech RT9119 racing seat complies with FIA 8855-1999 standards (with the exception of the Wide WHR variant). 1 Racetech RT9119 Mounting Options: Racetech RTB1009M (side mount) Racetech RTB2115B + RTB2005C (back mount). 1 In order to comply with FIA 8855-1999, this Racetech seat must be back-mounted to the roll cage at shoulder level. Racetech RT9119 Details: Gel-coat clear finish Seat cover in black fire-retardant fabric Anti-abrasion patches in black perforated leather FIA homologation FIA 8855-1999 approved (except RT9119WHR) Shell constructed of Kevlar/carbon Shell weight from 9.9 lbs. (4.5 kg) Integrated air ducting is vented to the driver's lower back Back-mount compatible (must be back-mounted for FIA compliance) Racetech RT9119 Racing Seat Sizes: Standard (HRW) Wide (WHR) Tall (THR) Wide & Tall (WTHR)     

Sparco SPX Reclining Seat (non-FIA) The SPX is handcrafted in Italy using the same technology and materials used for OEM super cars.  In fact, the SPX is the first carbon fiber reclining seat available to the public that meets the same specifications required by the OEM manufacturers. What this means is that the attention to detail and quality put into the SPX cannot be matched by any other seat manufacturer on the market today.  The Sparco SPX seat represents the ultimate evolution of the sport seat. The SPX uses a combination of carbon fiber and advanced composites that give the driver both comfort and performance in a lightweight package. With the ergonomic shape of the carbon fiber backrest and the seating position of the RTM composite lower, the SPX holds the driver during extreme lateral forces and is comfortable for long road trips.  The SPX is covered in a combination of beautiful perforated and smooth Italian leather. The center of the SPX is covered in Alcantara suede to allow you to gain absolute control of your vehicle and enhance your driving experience. To finish off the performance look, all hand stitching is done in tone-on-tone black with the Sparco logo embroidered in matching black. The gloss finished carbon fiber backrest features a leather pull strap which releases the backrest to fold forward to allow access to a backseat or storage area. The backrest also features a micro adjustment knob that allows you to dial in the perfect driving position.  The SPX is sold in driver and passenger versions (left and right). TECHNOLOGY Lightest carbon fiber reclining seat on the market Gloss carbon fiber back rest RTM composite lower (an advanced composite with strength and weight similar to carbon fiber) Covered in hand-stitched Italian leather and Alcantara suede Leather pull for seat back release Sold in driver (left) and passenger (right) versions SPX DIMENSIONS A LITTLE HISTORY Sparco has designed and engineered some of the most advanced sport seats in the world, including the first-ever adjustable carbon fiber seat in 1998 for the Lamborghini Diablo. Since then, countless super cars such as the Bugatti Veyron and Lamborghini Aventador have used Sparco design and technology in their vehicles. In addition to seats, Sparco also produces carbon fiber body panels, bumpers, roofs and aerodynamic pieces, in addition to structural carbon fiber parts like stressed-member engine cradles and other chassis parts.  Supplying OEM manufacturers requires every part to pass demanding safety and durability tests. Sparco’s extensive expertise in carbon fiber technology is why they're a Tier One supplier for Alfa Romeo, AMG, Aston Martin, Audi, Bentley, Bugatti, Ferrari, Koenigsegg, Lamborghini and Lotus to name a few. 

Porsche Motorsport Gloves Officially Licensed Porsche Motorsport Gear Competition Motorsport brings you Stand21's top-of-the-line, FIA-approved racing gloves exclusively featuring the officially licensed Porsche Motorsport logo. Externally-stitched seams eliminate pressure points on your fingers and palms, resulting in exceptional comfort and superior feel. Silicone palm and finger grips with ergonomically optimized anti-vibration pads help eliminate blisters and discomfort during long stints.  FEATURES: Officially licensed by Porsche Motorsport FIA 8856-2018 homologated Pre-formed palm and protective pads avoid blisters Knitted aramid forchet External seams improve comfort Premium aramid fabric and leather sewn with aramid thread Sized from Small (8) to 2XL (12)

Sparco Tide Nomex Gloves The Sparco Tide is a revolutionary racing glove, utilizing cutting-edge technology to provide incredible grip, excellent shock absorption, and superior comfort. Featuring an anatomically correct palm that contours to the natural shape of your hand, the palm of the Tide glove is made from advanced 3D HTX, a Sparco-exclusive material that increases grip, absorbs vibrations and increases dexterity. The hollow “volcano” shape of the HTX material is specially arranged to increase durability. Another Sparco-exclusive feature is Touch-S technology, a “Touch Sensitive” index finger and thumb. Sparco's patented fire resistant touch sensitive material allows you to use your touch screen data acquisition electronics or phone lap timer apps without taking off your gloves. Externally-stitched seams reduce pressure points on your fingers, and an elastic wrist gives you a secure, comfortable fit. Available in Black/Red, Black/Orange, White/Black, Red/Black and Blue/White. The Sparco Tide is FIA and SFI approved.  TECHNOLOGY “Touch Sensitive” finger tips compatible with touch screen data acquisition and lap timer apps. Anatomically correct palm that contours to the natural shape of the hand Advanced 3D HTX, a Sparco-exclusive material that increases grip, absorbs vibrations and increases dexterity The hollow volcano shape of the HTX material was specially arranged to increase durability A padded knuckle area provides additional comfort and protection when hands are bent FIA and SFI Approved

OMP One Evo X Nomex Gloves The One Evo X from OMP is a top-tier, extremely lightweight glove with precurved fingers for supreme comfort on your steering wheel. It's hard to describe just how amazingly lightweight and breathable these gloves are; you have to feel them to believe it! The palm, ball and fingers have an ultra-grippy, raised triangular silicone pattern that's second to none when it comes to maintaining your grip under even the most intense conditions on track. The One Evo X upper is made from extremely breathable and comfortable material, with an exclusive high-tech palm in silicon rubber proven to give you optimal grip, dexterity and sensitivity. As a top-tier glove, it features external seams to minimize pressure points on your fingers and palm, with an elastic wrist stop for excellent fitting comfort. The OMP One Evo X glove has quickly become a staff favorite at CMS, a premium racing glove that truly delivers on all fronts! COLORS: Black, Black/Fluo Yellow, Red, Navy Blue/Cyan, White SIZES: XS - XL HOMOLOGATION: FIA 8856-2018

CMS Performance Clubsport Roll Bar For Porsche 992 GT3 & GT3RS This Roll Bar Fits The Following Cars: Porsche GT3, 992 (2022+) Porsche GT3RS, 992 (2023+) New Ultimate Roll Bar for the Porsche 992 GT3 and GT3RS The CMS Performance Clubsport Roll Bar is a new variant of our incredibly popular GT3/GT3RS roll bar. Re-designed with steel gusseting and high-strength support tubing is added to the top and bottom of the X-brace and to all four corners, the CMS Performance Clubsport Roll Bar takes rigidity and strength to another level. This is the strongest, highest quality bolt-in roll bar on the market for the Porsche 992 GT3 and GT3RS, period. In designing and building the CMS Performance Clubsport roll bar, structural rigidity and impact protection were our primary goals. This roll bar is fully 360o TIG welded, the main tubing is 1.75" Docol R8 Advanced High-Strength Steel. CMS is the only roll bar manufacturer to employ this modern material. The support tubing is Docol R8 as well, and the gussets are machined from steel plate. CMS Performance tailors the GT3/GT3RS Clubsport roll bar to take full advantage of the strongest chassis mounting points in the Porsche 992 GT3/GT3RS . The main roll hoop is X-braced and gusseted, with a single tube cross-bar providing lateral strength that's also used for mounting racing harness shoulder straps. Attention To Detail Is The Hallmark Of CMS Performance The cross-bar on the CMS Performance Clubsport Roll Bar for the Porsche 992 GT3 and GT3RS lets you attach your racing harness shoulder straps at the proper angle (0° to -20° front-to-back) and distance relative to the driver and passenger, regardless of seat position. The CMS Performance Clubsport Roll Bar was designed to leave your rear view unobstructed by additional bracing that other roll bars require due to the use of inferior materials. CMS Performance also features a unique three-piece rear kicker that bolts to the Porsche 992 GT3/GT3RS rear shock towers (where the factory GT3 Cup Car roll cage mounts). These are the strongest rear mounting points, and also add rigidity to the chassis for more precise handling. This kicker design is incredibly strong while also being a breeze to install (typical one-piece designs can be a nightmare to install). The main roll hoop is mounted to your Porsche's steel frame structure beneath the vehicle just like the factory Cup Car cage. Built Like a Tank, Finished Like a Porsche Designed using the same guidelines as a full racing roll cage and fully 360o TIG welded by our chassis fabricators and master welders, the CMS Performance Clubsport Roll Bar for the Porsche 992 GT3 and GT3RS is unsurpassed in quality, durability, and structural integrity. Each roll bar is professionally powder-coated in-house to guarantee fit and finish no other manufacturer can match. This also lets us use powder coat colors we've matched to Porsche GT3 and GT3RS OEM paint colors for a truly customized aesthetic. We also offer custom technical powder coat finishes like the amazing Superchrome! Or you can choose our rich satin black powder coat for a more low-key installation. Powder coating any color you choose is included in the price of your CMS Performance roll bar. Don't Settle For Anything Less Than The Best Thoughtful engineering and design, superior materials, masterful fabrication, and beautifully customized finishing. That's the CMS Performance way of doing things. Backed by our legendary customer service, it all adds up to this: you can pay more for a roll bar, but you can only get the best from CMS. Add Premium Racing Harnesses To Your Porsche Add six-point Schroth Enduro 2x2 GT3, Schroth Flexi 2x2 GT3, or Sabelt Silver Series GT3 racing harness to your order and save! These harnesses are specifically designed for the Porsche 992 GT3 and GT3RS and will bolt to your factory lightweight carbon bucket seats. Or you can add four-point Schroth Profi II ASM GT3 or Sabelt Porsche GT3 4 Point harnesses, ideal for the Porsche 992 GT3 and GT3RS passenger seat that doesn't have a factory sub-strap pass through. With six-point harnesses, we strongly recommend using the CMS Performance Sub Strap Mount to provide a solid, properly located anchor for your anti-submarine straps. The CMS Performance Sub Strap Mount is simple to install at the same time you're installing your roll bar! Straightforward Installation Takes The Headache Out Of Roll Bars We've been through more than a few wrestling matches installing bolt-in roll bars in street cars. Fortunately, we used that experience to design the CMS Performance Roll Bar for the Porsche 992 GT3 and GT3RS to be a lot less frustrating to install. Check out the installation instructions here. We hesitate to go so far as to say it's easy, but we'll say it isn't hard if you have a friend and some basic tools. CMS Performance Roll Bar Details: Manufacturer: CMS Performance Manufacturer Part: RB11-992 Materials: Docol R8 Advanced High-Strength Steel; steel plate gussets. Construction: Full-penetration 360o TIG welded; one-piece gusseted main hoop and three-piece kicker; high-strength double-bolted interlocking roll bar joints and American-made Grade 8 hardware. CNC-cut precision mounting plates Full seat travel with any seat Detailed installation instructions & all necessary hardware for a seamless installation This product is intended for off-road race track use only.

CMS Performance Bolt-In Roll Bar For Porsche 992 GT3 & GT3RS This Roll Bar Fits The Following Cars: Porsche GT3, 992 (2022+) Porsche GT3RS, 992 (2023+) The Premium Roll Bar For Porsche's Latest Track Day Animal The CMS Performance Roll Bar is the strongest, safest, highest quality bolt-in roll bar on the market for the Porsche 992 GT3 and GT3RS (with the exception of our new CMS Performance Clubsport Roll Bar!). In designing and building any CMS Performance roll bar, safety and structural rigidity are our primary goals. And the Porsche 992 GT3/GT3RS roll bar is no exception. That's why we fully 360o TIG weld 1.75" Docol R8 Advanced High-Strength Steel tubing instead of the inferior 4130 CrMo or even mild steel other roll bar manufacturers use. CMS Performance tailors the Porsche 992 GT3/GT3RS roll bar to use the strongest chassis mounting points. The main roll hoop is X-braced and features a cross bar for mounting racing harness shoulder straps. Attention To Detail Is The Hallmark Of CMS Performance The CMS Performance Roll Bar for the Porsche 992 GT3 and GT3RS features a harness cross-bar that places your racing harness shoulder straps at the proper angle (0° to -20° front-to-back) and distance (as close as possible) to the driver and passenger, regardless of seat position. Our use of high-tech Docol R8 tubing and main-hoop cross bracing gives you an unobstructed rear view without the need for additional braces that add weight, complexity, and obstruct your view. CMS Performance features uniquely designed three-piece rear kickers that bolt to the Porsche 992 GT3/GT3RS rear shock towers (where the factory GT3 Cup Car roll cage mounts). The safest, strongest mounting points, this adds rigidity to the chassis and suspension. The three-piece kicker design is incredibly strong while also being a breeze to install (vs. the typical one-piece design that is usually a nightmare to install). The main roll hoop is mounted to Porsche's steel frame structure beneath the vehicle just like the factory Cup Car cage. Built To Racing Specs, Finished Like A Porsche Designed using the same guidelines as a full racing roll cage and fully 360oTIG welded by our chassis fabricators and master welders, the CMS Performance Roll Bar for the Porsche 992 GT3 and GT3RS is unsurpassed for quality, durability, and structural integrity. We professionally powder-coat each CMS Performance Roll Bar in-house to guarantee fit and finish no other manufacturer can achieve. This also lets us use powder coat colors matched to the Porsche GT3 and GT3RS OEM paint colors for a truly customized aesthetic. We also offer custom technical powder finishes like the amazing Superchrome (pictured above)! Or you can choose a rich satin black if stealth is more your thing. Powder coating any color you choose is included in the price of your CMS Performance Roll Bar. Don't Settle For Anything Less Than The Best Thoughtful engineering and design, superior materials, masterful fabrication, and beautiful custom finishing at an affordable price. That's the CMS Performance way of doing things. Backed by our legendary customer service, it all adds up to this: you can certainly pay a lot more for a roll bar, but you can only get the best from CMS. Add Premium Racing Harnesses To Your Porsche Add six-point Schroth Enduro 2x2 GT3, Schroth Flexi 2x2 GT3, or Sabelt Silver Series GT3 racing harness to your order and save! These harnesses are specifically designed for the Porsche 992 GT3 and GT3RS and will bolt to your factory lightweight carbon bucket seats. Or you can add four-point Schroth Profi II ASM GT3 or Sabelt Porsche GT3 4 Point harnesses, ideal for the Porsche 992 GT3 and GT3RS passenger seat that doesn't have a factory sub-strap pass through. With six-point harnesses, we strongly recommend using the CMS Performance Sub Strap Mount to provide a solid, properly located anchor for your anti-submarine straps. The CMS Performance Sub Strap Mount is simple to install at the same time you're installing your roll bar! Straightforward Installation Takes The Headache Out Of Roll Bars We've been through more than a few wrestling matches installing bolt-in roll bars in street cars. Fortunately, we used that experience to design the CMS Performance Roll Bar for the Porsche 992 GT3 and GT3RS to be a lot less frustrating to install. Check out the installation instructions here. We hesitate to go so far as to say it's easy, but we'll say it isn't hard if you have a friend and some basic tools. CMS Performance Roll Bar Details: Manufacturer: CMS Performance Manufacturer Part: RB01-992 Material: Docol R8 Advanced High-Strength Steel, 1.75" O.D. Construction: Full-penetration 360o TIG welded; one-piece main hoop and three-piece kickers; high-strength double-bolted interlocking roll bar joints and American-made Grade 8 hardware. CNC-cut precision mounting plates Full seat travel with any seat Detailed installation instructions & all necessary hardware for a seamless installation This product is intended for off-road race track use only.

CMS Performance Bolt-In Roll Bar for Porsche 991 GT3, GT3RS, GT2RS This Roll Bar Fits The Following Cars: 991.1 Porsche GT3 (2014-2016) 991.2 Porsche GT3 (2018-2019) 991.1 Porsche GT3RS (2015-2016) 991.2 Porsche GT3RS (2018-2019) 991.2 Porsche GT2RS (2018-2019) The Best Roll Bar For The Iconic 991 Porsche GT Cars The CMS Performance Porsche 991 Roll Bar is the strongest, safest, and highest quality bolt-in roll bar on the market for your GT2RS, GT3 or GT3RS, period. In designing and building the CMS Performance Roll Bar, safety and structural rigidity are our primary goals. That's why we fully TIG welded 1.75" Docol R8 Advanced High-Strength Steel tubing instead of the less-expensive but inferior 4130 CrMo others use. It's why we use the strongest chassis mounting points and cross-brace the main hoop. Precision And Innovation Set CMS Performance Apart The CMS Performance Roll Bar for the Porsche 991 GT3, GT3RS, and GT2RS is designed to locate your racing harness shoulder straps at precisely the right angle (0° to -20° front-to-back) and distance (as close as possible, not more than eight inches) to the driver and passenger, regardless of your seat position. Our use of high-tech Docol R8 tubing and main-hoop cross bracing gives you an unobstructed rear view without the need for more extensive braces that roll bars made of Chromoly or mild steel have to use. CMS Performance designed the rear kickers of the Porsche 991 Roll Bar to bolt to the rear shock towers (same as the factory GT3 Cup roll cage). Using the strongest mounting points adds rigidity to the chassis and suspension to improve handling precision. The CMS Performance main roll hoop is mounted to the steel sub-structure beneath the vehicle just like the factory cage. Built Like A Tank, Finished Like A Porsche The CMS Performance Roll Bar for the Porsche 991 GT3, GT3RS, and GT2RS is fully TIG welded by master welders giving it unsurpassed structural integrity and a precision fit in the car. CMS Performance powder coats each roll bar in-house to ensure a premium finish. This allows us to offer a full range of powder coats color-matched to your Porsche's OEM color palette. You can also get your roll bar powder coated in one of our custom technical finishes like the amazing Superchrome! Or, you can choose a rich satin black if stealth is more your thing. Every finish option is included in the price of the CMS Performance Roll Bar. Don't Settle For Anything Less Than The Best From CMS Superior engineering and design, premium materials, expert construction, and a beautiful custom finish at an affordable price. That's what sets CMS Performance apart from any other manufacturer. All backed by our legendary customer service, it adds up to this: you can certainly pay a lot more for a roll bar, but you can only get the best from CMS. Add Premium Harnesses to Complete Your Safety Upgrade Using the drop-downs above, you can add six-point Schroth Enduro 2x2 GT3, Schroth Flexi 2x2 GT3, or Sabelt Silver Series GT3 harnesses to your order for a truly comprehensive safety upgrade. Or add specially-engineered Schroth Profi II ASM GT3 or Sabelt Porsche GT3 four-point harnesses to your order for a simpler installation. Both six- and four-point harnesses are specially designed to bolt directly to your Porsche lightweight carbon bucket seats. (Some passenger seats do not have a factory sub-strap pass through.) When installing six-point harnesses in your Porsche, we strongly recommend adding the CMS Performance Sub Strap Mount to each seat. Custom designed to fit the Porsche lightweight carbon bucket seats, they provide solid, properly located anchors for your anti-submarine straps and are very easy to install alongside your CMS Performance roll bar. Click Here for Installation Instructions CMS Performance Porsche 991 Roll Bar Details: Manufacturer: CMS Performance Manufacturer Part: RB01 Material: Docol R8 Advanced High-Strength Steel, 1.75" O.D. Construction: Full-penetration 360o TIG welding, one-piece main hoop and three-piece kickers, CNC-cut precision mounting plates, CNC-machined steel interlocking clamps ease installation American-made Grade 8 hardware included Full seat travel with any seat Detailed installation instructions & all necessary hardware for a seamless installation This product is intended for off-road race track use only.

CMS Performance Bolt-In Roll Bar For Porsche 718 Cayman GT4RS This Roll Bar Fits the Following Cars: Porsche Cayman GT4RS, 718 (2023+) The First and Best Roll Bar Designed for the GT4RS CMS Performance has done it again! We've designed the new CMS Performance Roll Bar for the Porsche 718 Cayman GT4 RS to be the strongest, safest, and most beautifully constructed roll bar on the market. In designing the CMS Performance Roll Bar for your Porsche GT4 RS, safety and structural rigidity are, as always, our primary concerns. That's why we use 1.75 x .095" Docol R8 Advanced High-Strength Steel tubing. Docol R8 is stronger and more ductile than the Chromoly tubing other manufacturers use. The CMS Performance Porsche GT4 RS Roll Bar features a cross-bar designed to put your racing harness shoulder straps at the correct angle (0° to -20° front-to-back) and distance (about 8 inches) relative to the driver. Yet the CMS roll bar requires no cutting through the carpeting in the middle of your interior (replacing this carpet is expensive if you ever want to return your car to stock). This also provides an ideal mount for a HD Racing Video camera. Attention To Detail Is The Hallmark Of CMS Performance Our use of Docol R8 tubing throughout also lets us to keep the driver's rear view unobstructed by the rear diagonal bracing typically used to support weaker roll bars. This also gives you unfettered access to the engine cover without removing any part of your roll bar. Other roll bars require partial removal to get at your engine -- not ideal in a car that sees track time. The CMS Performance Roll Bar for the Porsche GT4RS is designed with rear kickers that route over the incredible carbon fiber intakes and engine cover and bolt to the GT4 RS rear shock towers. These are the safest, strongest possible mounting points, adding rigidity to the chassis and suspension. The main roll hoop is mounted to the frame structure across the rear bulkhead for light weight and superior safety. Exceptional Color Options Only From CMS Performance CMS Performance will powder coat your roll bar in a brilliant color that's been custom-matched to Porsche's GT4RS OEM color palette. We also offer powder coating in technical colors such as the amazing Superchrome! Or you can go with our rich satin black for a more stealthy look. The Best Porsche GT4RS Roll Bar At The Best Price Fully TIG welded by master welders using superior materials, the design, strength, fit, and finish of the CMS Performance GT4RS Roll Bar is second to none. You can certainly spend more on a roll bar, but can you only get the best from CMS Performance. Add Premium Racing Harnesses to Your Porsche GT4RS Add six-point Schroth Enduro 2x2 GT4, Schroth Flexi 2x2 GT4, or Sabelt Silver Series GT4 harnesses to your order and save! Or you can add either the Schroth Profi II ASM GT4 or Sabelt Porsche GT4 four-point harnesses for one or both seats. Both the six-point and four-point harnesses are specially designed to bolt directly to your Porsche GT4RS lightweight carbon bucket seats. If you're installing six-point harnesses in your Porsche, we strongly recommend adding the CMS Performance Sub Strap Mount to your seats. This custom-made steel sub strap mount provides a solid, properly located anchor for your anti-submarine strap, and it's easy to install at the same time as your roll bar. Click Here For Installation Instructions CMS Performance Porsche GT4RS Roll Bar Details: Manufacturer: CMS Performance Manufacturer part no.: PRB112 Materials: 1.75 x .095" Docol R8 Advanced High-Strength Steel; CNC-cut mounting carbon steel plates; solid steel CNC-machined interlocking roll bar joints Construction: 360o TIG welded throughout; one-piece main hoop & three-piece kickers ease installation Hardware included: all necessary American-made Grade 8 hardware Features: easy engine access without removing any part of the roll bar; no cutting your central carpet Installation: 3-4 hours with detailed instructions Porsche GT4RS Roll Bar Options: Pre-cut OEM Porsche interior trim for easier installation, preserving your original trim CMS Performance Sub Strap Mount This product is intended for off-road, race track use only.