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 +9LB/FT gains!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138899
Mfg#:
N3MS41
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date between 09/1992 and 12/1994 and Bosch DME # 0-261-200-413 For Vehicles with a Production Date Between 01/93 and 12/94.
Brand:
ES#:
3136948
Mfg#:
413-000
In Stock
ON SALE!
SAVE 20%
$299.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty -- For vehicles with production date up to 08/1992 with DME
Brand:
ES#:
3098139
Mfg#:
403-000
In Stock
ON SALE!
SAVE 20%
$249.00
This product was last offered at the strikethrough price on 05-02-2026
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty. -- For vehicles with production date up to 08/1992 with DM
Brand:
ES#:
3098135
Mfg#:
402-000
In Stock
ON SALE!
SAVE 20%
$249.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty -- 21.5 lb/hr injectors & M3 camshafts
Brand:
ES#:
3137001
Mfg#:
4130-0008
In Stock
ON SALE!
SAVE 20%
$449.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty -- M3 camshafts
Brand:
ES#:
3136972
Mfg#:
4130-0002
In Stock
ON SALE!
SAVE 20%
$399.00
This product was last offered at the strikethrough price on 05-02-2026
Performance software tuned for M50 manifold, HFM, cams, headers & high flow injectors
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138897
Mfg#:
N3M3CRH
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
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 +9LB/FT gains!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3195178
Mfg#:
N3MS41E
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +20HP +13LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty -- M3 muffler & lightweight flywheel
Brand:
ES#:
3136997
Mfg#:
4130-0005
In Stock
ON SALE!
SAVE 20%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +19HP +16LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date up to 12/1994 with 24lb injectors, and Schrick camshafts. Satisfaction guaranteed! Includes 30 day money back guarantee
Brand:
ES#:
3137174
Mfg#:
5060-3006
In Stock
ON SALE!
SAVE 20%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +22HP +20LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty -- M3 muffler & lightweight flywheel
Brand:
ES#:
3137012
Mfg#:
4131-0005
In Stock
ON SALE!
SAVE 20%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your BMW with dyno-proven gains by Jim Conforti - +19HP +16LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date from 01/1995, with Euro HFM, lightweight flywheel, 24lb injectors, and Schrick camshafts. Satisfaction guaranteed! Incl
Brand:
ES#:
3137080
Mfg#:
4131-3006
In Stock
ON SALE!
SAVE 20%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
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.
Lifetime Replacement
