Need to get low? ST coilovers feature a continuous thread construction for height adjustment from moderate to eXtreme!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Complete your 4 Series' aerodynamic profile with the Suvneer M-Tech Rear Bumper Splitters.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with M-Sport rear bumper.
Give your 4 Series the aggressive rear profile it deserves with the Suvneer M-Tech Style Diffuser.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with M-Sport rear bumper.
Enables the control of a single electronic exhaust valve
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Please visually confirm the exhaust valve actuator installed on your vehicle prior to purchase or installation - Only compatible with systems requiring a single electric valve actuator
Increase of +96 Horsepower, and +94 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This software is only compatible with Windows PC / Laptop.
Increase of +75 Horsepower, and +71 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This software is only compatible with Windows PC / Laptop.
The XClutch 8" Twin Disc Clutch And Flywheel Kit offers a lightweight design for improved throttle response combined with high torque capacity, making it ideal for high performance racing applications.
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The XClutch carbon series is designed to offer the highest heat capacity and is designed specifically for high horsepower race cars where mass and inertia are critical. Rated for 1230 ft-lb!
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The XClutch 9" Twin Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 1240 ft-lbs!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Vehicles with Production Date Up to 01/09 with 8 Bolt Crank For Vehicles with Production Date Up to 01/09 with 8 Bolt Crank
The XClutch 9" Twin Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 1240 ft-lbs!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Improve the exhaust tone of your BMW and gains the benefits of improved power & torque throughout entire RPM band
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Improve the exhaust tone of your BMW and gains the benefits of improved power & torque throughout entire RPM band
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
