Seat Accessories

Sparco HD Aluminum Side Mount Seat Brackets Far and away our most popular side mount seat bracket, the Sparco HD Aluminum seat mounts have multiple side holes making it easy to customize your seating position. The Sparco HD Aluminum side mounts have the added benefit of being able to mount with the legs facing either in or out, giving you more vehicle mounting options. These heavy duty side mounts are larger than the standard Sparco aluminum side mounts. All aluminum construction makes them lightweight, with an anodized silver finish for durability. Sparco HD Aluminum Side Mount Details Manufacturer: Sparco Manufacturer part no.: 004903 Material: aluminum Finish: anodized silver Weight: 3.4 lbs (1.5 kg) per set Multiple mounting positions Reverse mount option

CMS Performance Sub Strap + Lap Belt Mount for BMW E46 This mount fits BMW E46 cars (1999-2006), driver or passenger side The Best Way to Mount Harness Lap and Sub Belts in Your BMW  The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory BMW seats, giving you strong, secure mounting points for your racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original BMW mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount for BMW Details: Manufacturer: CMS Performance Manufacturer part no.: CMS-SL-E46 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap + Lap Belt Mount for GR Supra Fits the Following Vehicles: Toyota GR Supra, A90/91 (2020+) Toyota GR86 (2022+) Subaru BRZ, ZN8 (2022+) The Best Way to Mount Harness Lap and Sub Belts in Your Toyota/Subaru The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory seats, giving you strong, secure mounting points for your racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount Details: Manufacturer: CMS Performance Manufacturer part no.: CMS-SL-001 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap + Lap Belt Mount for Porsche This Mount Fits All Variants of the Following Cars: Porsche 911 (1997+) Porsche Boxster (1997+) Porsche Cayman (2006+) The Best Way to Mount Harness Lap and Sub Belts in Your Porsche The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory Porsche seats, giving you strong, secure mounting points for racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original Porsche mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount Details: Manufacturer: CMS Performance Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap Mount for Corvette C6 This Mount Fits All Variants of the Following Cars: Chevrolet Corvette C6 (All) The Best Way to Mount Harness Lap and Sub Belts in Your C6 Corvette The CMS Performance Sub Strap Mount is designed to be installed and used with your factory seats, giving you strong, secure mounting points for racing harness sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap Mount provides an extremely strong structure to which you can wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap Mount Details Manufacturer: CMS Performance Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap Mount for Corvette C7 This Mount Fits All Variants of the Following Cars: Chevrolet Corvette C7 (All) The Best Way to Mount Harness Lap and Sub Belts in Your C7 Corvette The CMS Performance Sub Strap Mount is designed to be installed and used with your factory seats, giving you strong, secure mounting points for racing harness sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap Mount provides an extremely strong structure to which you can wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap Mount Details Manufacturer: CMS Performance Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap Mount for Corvette C8 This Mount Fits All Variants of the Following Cars: Chevrolet Corvette C8  Chevrolet Corvette C8 Z51 Chevrolet Corvette C8 Z06 Chevrolet Corvette C8 ZR-1 The Best Way to Mount Harness Lap and Sub Belts in Your C8 Corvette The CMS Performance Sub Strap Mount is designed to be installed and used with your factory seats, giving you strong, secure mounting points for racing harness sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap Mount provides an extremely strong structure to which you can wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap Mount Details Manufacturer: CMS Performance Manufacturer Part Number: Harninstall-C8 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap + Lap Belt Mount for GT350/GT350R/S550 This Mount Fits All Variants of the Following Cars: Ford Performance Shelby GT350 (2015-2020) Ford Performance Shelby GT350R (2016-2020) Ford Performance Shelby GT500 (2021+) Ford S550 Mustang GT (2015-2023) The Best Way to Mount Harness Lap and Sub Belts in Your Shelby Mustang The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory Ford Performance seats, giving you strong, secure mounting points for racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original Ford mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount Details: Manufacturer: CMS Performance Manufacturer part no.: CMS-SL-003 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap + Lap Belt Mount for Toyota GR Corolla Fits the Following Vehicles: Toyota GR Corolla (2023+) The Best Way to Mount Harness Lap and Sub Belts in Your GR86/BRZ The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory Toyota GR seats, giving you strong, secure mounting points for racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original seat mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount Details: Manufacturer: CMS Performance Manufacturer part no.: CMS-SL-005 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

CMS Performance Sub Strap + Lap Belt Mount for BMW This mount fits BMW cars (2008+), driver or passenger side (Does not fit 2007 or earlier BMW's) The Best Way to Mount Harness Lap and Sub Belts in Your BMW  The CMS Performance Sub Strap + Lap Belt Mount is designed to be installed and used with your factory BMW seats, giving you strong, secure mounting points for your racing harness lap- and sub-belts without any drilling or cutting. The CMS Performance mount bolts to the rear mounting points of the driver and/or passenger seat, beneath the seat slider tracks, using your original BMW mounting bolts. CNC machined from 1/4-inch solid carbon steel and fully 360º TIG welded, the CMS Performance Sub Strap + Lap Belt Mount provides an extremely strong structure to which you can clip or bolt your harness lap belts and wrap your sub strap(s). Powder coated a rich, durable satin black, the CMS Performance Sub Strap + Lap Belt Mount is nearly invisible once installed. It does not interfere with seat movement fore/aft or up/down in any way, installs in minutes, and can be removed just as easily without leaving a trace. The CMS Performance Sub Strap + Lap Belt Mount is designed, manufactured, and powder-coated entirely in-house in the USA. CMS Performance Sub Strap + Lap Belt Mount for BMW Details: Manufacturer: CMS Performance Manufacturer part no.: CMS-SL-001 Construction: TIG-welded solid carbon steel Finish: satin black powder-coat Fitment: fits driver or passenger seat Allows full fore/aft and up/down seat adjustment Does not interfere with OEM seat belts or airbag hardware

Sparco QRT-R Side Mount Seat Brackets Sparco QRT-R side mounts are specifically designed for the QRT-R and other QRT performance seats. These QRT side mounts are designed for the unique bottom shape of QRT seats. Multiple side holes allow your QRT seat to be mounted low in the vehicle and with the proper amount of recline or rake. Available in black. Sparco QRT-R Side Mount Details Manufacturer: Sparco Manufacturer part no.: 600QRT, 600QRTAL Material: steel or aluminum Weight: 6.5 lbs per set (steel), 3.2 lbs per set (aluminum) Designed for unique QRT bottom shell shape Allows for low mounting in vehicle and proper recline or rake

Sparco Aluminum Side Mount Seat Brackets Sparco Aluminum side mounts lightweight and strong, used to mount Sparco competition seats in your vehicle. These Sparco side mounts have multiple side holes, making it easy to find a safe and comfortable mounting position. Sparco 600W Aluminum Side Mount Seat Bracket Details Manufacturer: Sparco Manufacturer part no.: 600W Material: aluminum Finish: black powder coating Weight: 2.5 lbs. (set of two mounts)

Racetech RT1005M Aluminum Side Mounts Light Weight and Strong Racing Seat Side Brackets Racetech milled aluminum alloy bracket set for side-mounting seats to your car floor or chassis. CNC machined from from strong, lightweight 5mm thick 5083 aluminum alloy. Sold as a pair. Racetech RT1005M Brackets Fit the Following Seats RT1000 RT4000W (discontinued) RT4000WX (discontinued) RT Saker (with modification) RT Road RT RoadW (discontinued) RT4000WLB RT4000WXLB RT1000LBHG Racetech RT1005M Specs and Details Weight: 2.52 lbs (1.14 kg) per pair Materials: 5mm 5083 aluminum alloy Seat hole spacing: nominal 260mm; min 252mm; max 264mm

Sparco 90° Aluminum Seat Side Mount Brackets Sparco 90o Aluminum Side Mounts are lightweight and strong for mounting competition seats in your vehicle. These side mounts have multiple mounting holes, making it easy to customize your seat mount for safety and comfort. Their all-aluminum construction keeps them feather-light, and they're powder coated black for durability. Sparco 90o Aluminum Side Mounts are ideal for vehicles with limited room for seat mounts. Compared to typical side mounts, their smaller footprint gives you mounting options. Sparco Aluminum 90o Side Mount Details Manufacturer: Sparco Manufacturer part no.: 600W90 Material: aluminum Finish: powder coated for superior protection Weight: 2.5 lbs (1.1kg) per set

CMS Performance Lap Belt Mounts for Subaru WRX Secure Racing Harness Lap Belt Mounting for Your Subaru WRX The CMS Performance Lap Belt Mounts for Subaru WRX provide strong, dedicated mounting points for the lap belts of your racing harness while retaining the factory seats and normal seat operation. Designed specifically around the Subaru WRX seat mounting system, the CMS Performance Lap Belt Mounts install beneath the factory seat slider tracks using the vehicle's existing seat mounting locations. No drilling, cutting, welding, or permanent modification to your WRX is required. The Right Way to Mount Harness Lap Belts in Your Subaru WRX A properly installed racing harness requires strong and correctly positioned mounting points. The CMS Performance Subaru WRX Lap Belt Mounts eliminate the need for improvised mounting solutions by providing dedicated attachment points specifically for your harness lap belts. The mounts utilize the factory seat mounting locations beneath the seat slider assembly, creating a clean and secure installation while keeping the hardware tucked discreetly beneath the seat. 1/4-Inch Solid Carbon Steel Construction CMS Performance Lap Belt Mounts are manufactured from 1/4-inch solid carbon steel and feature fully TIG-welded harness mounting tabs for exceptional strength and rigidity. Each mount is finished in a durable satin black powder coat that protects the steel and allows the hardware to blend cleanly into the Subaru WRX interior. 1/4-inch solid carbon steel construction Fully TIG-welded harness mounting tabs Dedicated racing harness lap belt mounting points Durable satin black powder-coated finish Low-profile vehicle-specific design True Bolt-In Installation With No Drilling The CMS Performance Subaru WRX Lap Belt Mounts install using existing factory seat mounting locations and hardware. There is no need to drill holes through the chassis, cut the interior, or weld mounting plates into the vehicle. The mounts can also be removed without leaving permanent modifications behind, making them an excellent option for street-driven WRXs that also see track use. Retains Factory Seat Adjustment The CMS Performance Lap Belt Mounts are engineered to integrate with the factory Subaru WRX seating system without sacrificing normal seat operation. Fits driver or passenger seat applications Maintains full fore/aft seat adjustment Maintains factory up/down seat adjustment Does not interfere with the OEM three-point seat belt Does not interfere with factory airbag hardware Installs beneath the factory seat slider tracks No drilling or cutting required Built for Street and Track Subaru WRXs For Subaru WRX owners participating in track days, HPDE events, time trials, autocross, or other motorsport activities, the CMS Performance Lap Belt Mounts provide a clean solution for adding dedicated racing harness mounting points while retaining the factory interior. The low-profile design keeps the mounts nearly invisible once installed while providing convenient attachment points when your racing harness is in use. Designed and Manufactured in the USA The CMS Performance Subaru WRX Lap Belt Mounts are designed, manufactured, TIG welded, and powder coated in-house in the USA. CMS Performance components are engineered specifically for motorsport applications with an emphasis on strength, vehicle-specific fitment, straightforward installation, and clean integration with the factory vehicle. CMS Performance Subaru WRX Lap Belt Mount Details Manufacturer: CMS Performance Product: Racing Harness Lap Belt Mounts Vehicle: Subaru WRX Construction: 1/4-inch solid carbon steel Welding: TIG-welded construction Finish: Satin black powder coat Installation: Bolt-in using factory seat mounting locations Seat Position: Driver or passenger Vehicle Modification: No drilling or cutting required Seat Adjustment: Retains full fore/aft and up/down adjustment OEM Compatibility: Does not interfere with factory seat belts or airbag hardware Manufacturing: Designed and manufactured in the USA Frequently Asked Questions What do the CMS Performance Subaru WRX Lap Belt Mounts do?They provide dedicated attachment points for the lap belt portion of a racing harness without requiring permanent modifications to the vehicle. Do the Subaru WRX Lap Belt Mounts require drilling?No. They install using the factory seat mounting locations and require no drilling, cutting, or welding to the vehicle. Can the mounts be installed on the driver and passenger sides?Yes. The mounts are designed for use with either the driver or passenger seat. Will I still be able to adjust my factory seat?Yes. The mounts are designed to retain normal fore/aft and up/down factory seat adjustment. Can I continue using my factory seat belt?Yes. The mounts are designed so they do not interfere with the OEM three-point seat belt or factory airbag hardware. Are these mounts for the lap belts or sub straps?These mounts are specifically designed to provide mounting points for the lap belt portion of a racing harness. A sub strap mounting solution is required separately when installing a harness with anti-submarine straps. Can the mounts be removed later?Yes. Because they utilize the factory seat mounting locations, the mounts can be removed without leaving drilled holes or other permanent modifications behind. Where are the CMS Performance Subaru WRX Lap Belt Mounts made?They are designed, manufactured, TIG welded, and powder coated in-house in the USA.

CMS Performance Lap Belt Mount for Mustang GT350/GT350R/S550 Secure Harness Lap Belt Mounting for Your Ford Mustang The CMS Performance Lap Belt Mount provides strong, properly positioned mounting points for racing harness lap belts in Ford Mustang GT350, GT350R, GT500, and S550 applications. Designed for use with the factory Ford Performance seating system, this bolt-in mount installs beneath the factory seat slider tracks using the vehicle's original seat mounting locations. No drilling, cutting, or permanent modification to the vehicle is required. Vehicle Fitment The CMS Performance Lap Belt Mount fits all variants of the following vehicles: Ford Performance Shelby GT350 (2015-2020) Ford Performance Shelby GT350R (2016-2020) Ford Performance Shelby GT500 (2021+) Ford S550 Mustang GT (2015-2023) Heavy-Duty TIG-Welded Steel Construction Built for serious track and motorsport use, the CMS Performance Lap Belt Mount is manufactured from heavy-duty solid carbon steel and fully TIG welded to create a rigid, secure structure for mounting your racing harness lap belts. The mount is finished in a durable satin black powder coat that blends cleanly into the interior and is nearly invisible once the seat is installed. True Bolt-In Installation The CMS Performance Lap Belt Mount attaches to the factory seat mounting points beneath the seat slider tracks and utilizes the original Ford seat mounting hardware. Installation requires no drilling, welding, or cutting and can be reversed without leaving permanent modifications behind. Maintains Factory Seat Function Unlike improvised harness mounting solutions, the CMS Performance Lap Belt Mount is engineered specifically around the factory Mustang seat system. Fits the driver or passenger seat Maintains full fore/aft seat adjustment Maintains factory seat height adjustment Does not interfere with the OEM three-point seat belt Does not interfere with factory airbag hardware Provides dedicated mounting points for racing harness lap belts Designed and Manufactured in the USA The CMS Performance Lap Belt Mount is designed, manufactured, TIG welded, and powder coated entirely in-house in the USA. Every mount is built specifically for motorsport applications where strength, proper harness positioning, vehicle compatibility, and clean installation are critical. CMS Performance Lap Belt Mount Details Manufacturer: CMS Performance Product: Racing Harness Lap Belt Mount Construction: TIG-welded solid carbon steel Finish: Satin black powder coat Installation: Bolt-in using factory seat mounting locations Seat Position: Driver or passenger side Vehicle Modification: No drilling or cutting required Seat Adjustment: Retains full fore/aft and up/down adjustment OEM Compatibility: Does not interfere with factory seat belts or airbag hardware Manufacturing: Designed and manufactured in the USA Frequently Asked Questions Does installation require drilling or cutting?No. The CMS Performance Lap Belt Mount installs using the factory seat mounting locations and original mounting hardware. Will the mount interfere with seat adjustment?No. The mount is designed to retain normal fore/aft and up/down seat adjustment. Can it be installed on the driver and passenger seats?Yes. The mount can be used on either the driver or passenger side. Can I continue using the factory seat belt?Yes. The mount is designed so it does not interfere with the factory three-point seat belt or associated airbag hardware. Is this the Sub Strap + Lap Belt Mount?No. This listing is specifically for the CMS Performance Lap Belt Mount. A combination Sub Strap + Lap Belt mounting solution is available separately for applications requiring both lap belt and anti-submarine belt mounting points. Where is the CMS Performance Lap Belt Mount made?It is designed, manufactured, TIG welded, and powder coated in the USA. ```