CMS Performance
CMS Performance Sub Strap + Lap Belt Mount for BMW E46
from $159.00
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
CMS Performance Sub Strap + Lap Belt Mount | GR Supra/GR86/BRZ
from $159.00
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
CMS Performance Sub Strap + Lap Belt Mount for Porsche
from $159.00
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
CMS Performance Sub Strap Mount for C6 Corvette
from $159.00
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
CMS Performance Sub Strap Mount for C7 Corvette
from $159.00
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
CMS Performance Sub Strap Mount for C8 Corvette
from $159.00
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
CMS Performance Sub Strap + Lap Belt Mount for Mustang GT350/GT350R/S550
from $159.00
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
CMS Performance Sub Strap + Lap Belt Mount | Toyota GR Corolla
from $159.00
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
CMS Performance Sub Strap + Lap Belt Mount for BMW
from $159.00
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 S.p.A.
Sparco QRT-R Side Mount Brackets (600QRT)
from $150.00
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 S.p.A.
Sparco Side Mount Brackets: Aluminum (600W)
$150.00
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 Manufacturing Limited
Racetech RTB1005M Aluminum Side Mount Brackets
$149.99
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 S.p.A.
Sparco Side Mount Brackets: 90° Aluminum (600W90)
$140.00
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
CMS Performance Harness Install Kit For GR Corolla (2023+)
from $125.00
CMS Performance Harness Install Kit For GR Corolla
This Product Fits The Following Cars:
Toyota GR Corolla (2023+)
Quick and Easy Installation of Harness Lap Belts in the GR Corolla
The CMS Performance Harness Install Kit for the GR Corolla provides two strong, secure anchors for the lap belts of your racing harness using the factory seats of your GR Corolla. The kit is typically used along with the bolt-in CMS Performance Roll Bar for the GR Corolla. Together they give GR Corolla driving enthusiasts an elegant, secure way to use a racing harness.
Each CMS Performance GR Corolla Harness Install Kit is for one seat (driver or passenger side, the kit works on either seat). Ordering two kits now, you save $25 and you can install a harness for your passenger or instructor.
CMS Performance is 100% Designed and Built in the USA
All CMS Performance products are designed, constructed, and finished in our USA manufacturing and powder coating facility. The CMS Performance GR Corolla Harness Install Kit is CNC cut and fully TIG-welded from high-strength stainless steel, then powder coated a rich satin black to blend seamlessly into your interior when you don't have harnesses installed. Complete detailed instructions make installation straightforward (figure about an hour if you're reasonably handy). Click here for installation instructions.
For the GR Corolla, we recommend the Schroth Profi II ASM Harness for use with this kit. Schroth's proprietary Anti-Submarine (ASM) technology was developed specifically for use in street cars like the GR Corolla that don't have a pass-through in the seat cushions to accommodate the sub straps of a six-point racing harness.
CMS Performance Harness Install Kit Details:
Manufacturer: CMS Performance
Construction: 360o TIG welded stainless steel
Finish: Satin black powder coat
Designed, built, and powder coated in the USA
This product is intended for off-road use only.
CMS Performance
CMS Performance Harness Install Kit For C8 Corvette (2025+)
from $125.00
CMS Performance Harness Install Kit For C8 Corvette
This Product Fits The Following Cars:
Chevrolet Corvette C8 Stingray & Z51 (2025+)
Chevrolet Corvette C8 Z06 (2025+)
Quick and Easy Installation of Harness Lap Belts in the C8 Corvette
The CMS Performance Harness Install Kit for the C8 Corvette provides two strong, secure anchors for the lap belts of your racing harness using the factory seats of your C8 Corvette. The kit is typically used along with the CMS Performance C8 Harness Bar or Deluxe C8 Harness Bar. Together they give C8 Corvette driving enthusiasts an elegant, secure way to use a racing harness.
Each CMS Performance C8 Corvette Harness Install Kit is for one seat (driver or passenger side, the kit works on either seat). Ordering two kits now, you save $25 and you can install a harness for your passenger or instructor.
CMS Performance is 100% Designed and Built in the USA
All CMS Performance products are designed, constructed, and finished in our USA manufacturing and powder coating facility. The CMS Performance C8 Corvette Harness Install Kit is CNC cut and fully TIG-welded from high-strength stainless steel, then powder coated a rich satin black to blend seamlessly into your interior when you don't have harnesses installed. Complete detailed instructions make installation straightforward (figure about an hour if you're reasonably handy). Click here for installation instructions.
For the C8 Corvette, we recommend the Schroth Profi II ASM Harness for use with this kit. Schroth's proprietary Anti-Submarine (ASM) technology was developed specifically for use in street cars like the C8 Corvette that don't have a pass-through in the seat cushions to accommodate the sub straps of a six-point racing harness.
CMS Performance Harness Install Kit Details:
Manufacturer: CMS Performance
Construction: 360o TIG welded stainless steel
Finish: Satin black powder coat
Designed, built, and powder coated in the USA
This product is intended for off-road use only.
CMS Performance
CMS Performance Harness Install Kit For C7 Corvette
from $125.00
CMS Performance Harness Install Kit For C7 Corvette
This Product Fits The Following Cars:
Chevrolet Corvette Stingray & Z51, C7 (2014-2019)
Chevrolet Corvette Z06, C7 (2015-2019)
Quick and Easy Installation of Harness Lap Belts in the C7 Corvette
The CMS Performance Harness Install Kit for the C7 Corvette provides two strong, secure anchors for the lap belts of your racing harness using the factory seats of your C7 Corvette.
Each CMS Performance C7 Corvette Harness Install Kit is for one seat (driver or passenger side, the kit works on either seat). Ordering two kits saves you $25 overall and you can install a harness for your passenger or instructor.
CMS Performance is 100% Designed and Built in the USA
All CMS Performance products are designed, constructed, and finished in our USA manufacturing and powder coating facility. The CMS Performance C7 Corvette Harness Install Kit is CNC cut and fully TIG-welded from high-strength stainless steel, then powder coated a rich satin black to blend seamlessly into your interior when you don't have harnesses installed. Complete detailed instructions make installation straightforward (figure about an hour if you're reasonably handy). Click here for installation instructions.
For the C7 Corvette, we recommend the Schroth Profi II ASM or Sabelt Steel Series four-point harnesses for use with this kit. Schroth's proprietary Anti-Submarine (ASM) technology was developed specifically for use in street cars like the C7 Corvette without a sub strap a pass-through in the seats. Sabelt's four point Steel Series offers an alternative that gives you a significant safety upgrade at a reasonable price!
CMS Performance Harness Install Kit Details:
Manufacturer: CMS Performance
manufacturer Part: Harninstall-C7
Construction: 360o TIG welded stainless steel
Finish: Satin black powder coat
Designed, manufactured, and powder coated by CMS Performance in the USA
This product is intended for off-road use only.