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BMW Interior Parts for BMW E46 M3 S54 (1999-2005)

The interior of your BMW is where you will hopefully spend most of your time, so it should be ergonomic, comfortable, and safe. All interior components, from OEM replacement switches, trim, or steering wheels, to aftermarket upgrades like racing wheels, safety equipment, and racing seats, are available at Turner Motorsport.

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Seat Floor Adapters - E36, E46, E85 - Macht Schnell

T#:300563

Part#: 79.10.101B

Ships on Aug 26, 2026

$ 235.00 USD

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$ 235.00 USD

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In order to mount aftermarket seats in your car, you need a floor mount adapter. These high-quality aluminum adapters are made by Macht Schnell. These bolt to your existing seat mounting studs in the floor and offer the lowest profile of any floor mount (22mm height). This helps to keep your seat at the lowest position possible. Your seat adapters or sliders bolt to this adapter plate. These floor mounts are a matrix style with rows of threaded holes that allow you to find an ideal seat location. There are other options - including homemade - but these seat brackets for your BMW are the highest quality to match your expensive seats.

Sold per seat. Can be used on left or right sides of vehicle.

These adapters were originally designed for the E46 chassis. They can fit the E36 by modifying the mounting holes to match the bolt and stud locations on the E36 floor.

This item fits the following BMWs:
1995-1999 E36 BMW 318i 318is 318ti 318i 323is 323i 325i 325is 325i 328i 328is 328i M3 (except convertibles) ( see note above )
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 (except convertibles)
2003-2008 E85 E86 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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Racing Seat Mounting Brackets - E46 Coupe

For coupe models only

T#:6491872

Part#: BKTE46992

Ships in 7 Business Days

$ 104.99 USD

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$ 104.99 USD

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Comes with 1 pair of racing seat brackets (driver & passenger sides) and made of high-quality light weight durable steel

Macht Schnell Driver Side Clubsport Seat Mount - E46 BMW

T#:16907170

Part#: 70.10.201

Ships on Sep 11, 2026

$ 325.00 USD

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$ 325.00 USD

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Performance Seat Mounting Kit

Revamp your racing seat setup with this comprehensive mounting kit, designed for precision, adjustability, and durability. Here are the key features:

Crafted from a single piece of 1/8” carbon steel for precise construction
SmoothGlide seat sliders with adjustment handle included
Installs onto factory bolt locations for precise fitment
Multiple adjustment options for precise centering
Offers 5 & 6 point sub belt mounting locations
Single-tool adjustments facilitated by bottom locking hardware
Utilizes high-grade 10.9 hardware for optimal strength
Powder-coated finish on base and side mounts for durability
Includes nylon side mount spacers for enhanced stability

Upgrade your racing setup with this top-notch mounting kit, available in standard and wide widths.

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Spec-D Tensile Steel Racing Seat Mounting Brackets - 1999-2005 BMW E4...

T#:14684337

Part#: BKT-E46992

Ships in 7 Business Days

$ 104.99 USD

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$ 104.99 USD

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Brand new in original box Comes with 1 pair of racing seat brackets (driver & passenger sides) Made of high quality light weight durable steel Dimension: 14" x 19" Fits with all 4-Point / 5-Point / 6-Point aftermarket seat belts No modifications are needed

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Seatbelt 4-point Race Harness Receptacles - Macht Schnell

T#:338505

Part#: 79.12.15X

Ships on Aug 18, 2026

Starting at $ 125.00 USD

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Starting at $ 125.00 USD

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If you're going to use a 4 point racing harness with your racing or sport seat and don't want to drill through your floor and carpet, these harness adapter plates are perfect*. These sandwich in between your slider and seat bracket for a strong and secure mounting point. They are made from high-strength steel and powedercoated in stealthy black. Choose from a bolt-in or clip-in style harness end. These will only work with the Macht Schnell floor mounts.

* - note that most racing harness manufacturers will advise that drilling through the floor is the best method for mounting harnesses. This allows you to locate the mount in the ideal location and angle to fit your driving position. The proper installation is paramount to ensure the harness works correctly in an impact.

Sold per seat.

This item fits the following BMWs:
2008-2012 E82 BMW 128i 135i 1M Coupe
1992-1998 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 (not convertibles)
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive M3 - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3 - Coupe
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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BMW E46 Macht Schnell Passenger Side Clubsport Seat Mount - E46 BMW ...

T#:16907172

Part#: 70.10.202

Special Order: No Guaranteed ETA

$ 325.00 USD

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$ 325.00 USD

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Comes complete with mounting brackets, sliders, and adjustment mechanisms. Lightweight, strong and simple to install. Integrated locking stops for hardware provide single-tool adjustments. No modifications required for installation and fully reversible at any time. Available in standard (most race shells) and wide widths. Sold individually. Features: - Precision laser cut & formed from single piece of 1/8” carbon steel, allowing zero play. - SmoothGlide seat sliders included with adjustment handle - Mounts to factory bolt locations with precise factory fitment - Multi-way adjustability for precise centering - 5 & 6 point sub belt mounting locations - Single tool adjustments with bottom locking hardware - 10.9 Grade Hardware - Powdercoated base and side mounts - Nylon side mount spacers

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Seatbelt 6-point Race Harness Receptacles - Macht Schnell

T#:338507

Part#: 79.20.150K

Ships on Aug 18, 2026

Starting at $ 174.00 USD

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Starting at $ 174.00 USD

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Many racing series and event organizers are requiring 5 or 6-point harnesses in their events now. Attaching the anchor points to the seat base is a desired alternative to drilling holes in your floor and carpet*. This set includes the 6-point anchor to attach to the Macht Schnell floor mount as well as side attachments for either a bolt-in or snap-in harness.

* - note that most racing harness manufacturers will advise that drilling through the floor is the best method for mounting harnesses. This allows you to locate the mount in the ideal location and angle to fit your driving position. The proper installation is paramount to ensure the harness works correctly in an impact.

Sold per seat.

This item fits the following BMWs:
2008-2012 E82 BMW 128i 135i 1M Coupe
1992-1998 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 (not convertibles)
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive M3 - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3 - Coupe
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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BMW Interior Parts for BMW E46 M3 S54 (1999-2005)

Sub-Categories

Seat Floor Adapters - E36, E46, E85 - Macht Schnell

Racing Seat Mounting Brackets - E46 Coupe

Macht Schnell Driver Side Clubsport Seat Mount - E46 BMW

Performance Seat Mounting Kit

Spec-D Tensile Steel Racing Seat Mounting Brackets - 1999-2005 BMW E4...

Seatbelt 4-point Race Harness Receptacles - Macht Schnell

BMW E46 Macht Schnell Passenger Side Clubsport Seat Mount - E46 BMW ...

Seatbelt 6-point Race Harness Receptacles - Macht Schnell

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