Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering.
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5470978
Mfg#:
MF-TRS-05E46A
In Stock
Limited Qty Sale
$999.99
This product was last offered at the strikethrough price on 06-24-2026
More holding power with a Rigid organic/fiber tough disc Designed for OE Dual Mass Flywheel
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4920658
Mfg#:
03005HD0FR
In Stock
ON SALE!
SAVE 35%
$590.99
This product was last offered at the strikethrough price on 05-02-2026
Upgraded clutch plate and Ceramic Lined Sprung Disc For Use With Aftermarket Single Mass Flywheel
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5340595
Mfg#:
03005-HDCL-D
In Stock
ON SALE!
SAVE 30%
$662.99
This product was last offered at the strikethrough price on 05-02-2026
Safely install 10mm spacers by extending the surface area of your hub
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3028402
Mfg#:
TWH9905002-K
In Stock
ON SALE!
SAVE 20%
$231.98
This product was last offered at the strikethrough price on 06-13-2026
The XClutch 8" 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 890 ft-lbs!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
Dial in a more aggressive fitment and provide clearance for other components such as brakes and suspension
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Recommend 12x1.5x39mm conical bolts
Brand:
ES#:
5396077
Mfg#:
610-502002-B
Ships in 1 Business Day
ON SALE!
$108.99
This product was last offered at the strikethrough price on 01-28-2026
Dial in a more aggressive fitment and provide clearance for other components such as brakes and suspension
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Recommend 12x1.5x39mm conical bolts
Brand:
ES#:
5396079
Mfg#:
610-502004-B
In Stock at Vendor
ON SALE!
SAVE 12%
$117.99
This product was last offered at the strikethrough price on 01-28-2026
Dial in a more aggressive fitment and provide clearance for other components such as brakes and suspension
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Recommend 12x1.5x39mm conical bolts
Brand:
ES#:
5396078
Mfg#:
610-502003-B
Ships in 1 Business Day
ON SALE!
$117.99
This product was last offered at the strikethrough price on 01-28-2026
Just because your BMW doesn't have a third pedal, doesn't mean it should be stuck with some goofy shifter.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
The ideal choice for drivers looking to upgrade their vehicle's braking performance and aesthetics in one simple package.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Fits 2003-2008 BMW Z4 3.0i
This all-in-one "bolt-on" kit is specifically engineered to provide a significant increase in stopping power without the noise or dust.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Fits 2003-2008 BMW Z4 3.0i
Complete Z23 sport brake kit with red calipers for the Z4 3.0i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Model Years 03-08
Brand:
ES#:
4800546
Mfg#:
KC873
Ships in 2 Business Days
$977.99
This product was last offered at the strikethrough price on 02-24-2026
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.
