Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +15HP +12LB/FT gains!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date from 09/1998
Brand:
ES#:
3138953
Mfg#:
N4MS42
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Expand your wheel options by dialing in fitment of 72.6mm centerbore wheels on your 74.1mm hub
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Includes extended wheel bolt set
Brand:
ES#:
2827152
Mfg#:
3990ECS01-15KT
In Stock
ON SALE!
SAVE 25%
$155.99
This product was last offered at the strikethrough price on 06-13-2026
Complete cylinder head with guides, seats, valves, & springs
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date from 09/1998
Includes performance drilled and slotted rotors and Power Stop's Extreme Carbon-Fiber Ceramic pads.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For sedan models only
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 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
Make wheel changes faster and easier, enough to convert both axles
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Ideal for vehicles with up to 30mm wheel spacers. May also be used with smaller spacers or without spacer
Brand:
ES#:
2807083
Mfg#:
PRACH5KT3
In Stock
ON SALE!
SAVE 10%
$191.99
This product was last offered at the strikethrough price on 06-13-2026
A high performance street pad, featuring Kevlar technology
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
517807
Mfg#:
DP31289C
In Stock
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$137.99
This product was last offered at the strikethrough price on 07-07-2026
Converts the center bore from 74.1mm to 72.56mm - increase wheel options without adapters or machine-work!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with factory sport suspension
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! Average lowering of 1.2" Front and 0.6" Rear - For Sedans with sport suspension
Brand:
ES#:
240611
Mfg#:
29742-2
In Stock
15% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$389.00
This product was last offered at the strikethrough price on 07-01-2026
Expand your wheel options by dialing in fitment of 72.6mm centerbore wheels on your 74.1mm hub
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Includes extended wheel bolt set
Brand:
ES#:
2827144
Mfg#:
3990ECS01-13KT
In Stock
ON SALE!
$151.99
This product was last offered at the strikethrough price on 06-13-2026
Improve throttle response, acceleration and clutch feel - the perfect setup for daily-driven vehicles with up to 400lbs-ft of torque
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Eliminate factory dual-mass flywheel and self-adjusting-clutch without the chatter caused by some perform
Brand:
ES#:
2857544
Mfg#:
000282ECS01KT1
In Stock
ON SALE!
$1635.99
This product was last offered at the strikethrough price on 06-13-2026
The XClutch Stage 2 Single Disc Clutch offers a lightweight design for improved throttle response combined with an increased torque capacity, making it ideal for racing applications. Rated for 520 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
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.
Lifetime Replacement
