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
Brand:
ES#:
3136994
Mfg#:
4130-0004
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 - +11HP +19LB/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 manual transmission and a production d
Brand:
ES#:
3098180
Mfg#:
282-300
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 - +11HP +19LB/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 manual transmission and a production d
Brand:
ES#:
3098165
Mfg#:
357-300
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 - +11HP +19LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with manual transmission and a production date from 01/1995 with Bosch DME #0-261-203-282 -- Satisfaction guaranteed! Includes 30 day mone
Brand:
ES#:
3098422
Mfg#:
282-400
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 - +11HP +19LB/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 automatic transmission and a productio
Brand:
ES#:
3098427
Mfg#:
282-410
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 - +11HP +19LB/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 automatic transmission and a productio
Brand:
ES#:
3098182
Mfg#:
282-310
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 - +11HP +19LB/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 automatic transmission and a productio
Brand:
ES#:
3098163
Mfg#:
357-310
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 - +11HP +19LB/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 manual transmission and a production d For Vehicles made up to 12/94 w/ Manual
Brand:
ES#:
3137211
Mfg#:
990-300
In Stock
ON SALE!
SAVE 20%
$249.00
This product was last offered at the strikethrough price on 05-02-2026
Wake up your Euro S50B32 with dyno-proven gains by Jim Conforti - +15HP +15LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For cars with Euro S50B32 engine only. Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty.
Brand:
ES#:
3098031
Mfg#:
075-300
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. Includes JB4 side repair harness molex pigtail.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 a lightweight flywheel. Satisfaction guaranteed! Includes 30 day money back guarantee and limited li
Brand:
ES#:
3137168
Mfg#:
5060-3003
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 - +19HP +16LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date up to 12/1994 with 21.5lb injectors. Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime
Brand:
ES#:
3137178
Mfg#:
5060-3008
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 - +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 camshafts & lightweight flywheel
Brand:
ES#:
3137008
Mfg#:
4131-0003
In Stock
ON SALE!
SAVE 20%
$399.00
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 and a Euro HFM. Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warran
Brand:
ES#:
3137163
Mfg#:
5060-3001
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 - +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, and 21.5lb injectors. Satisfaction guaranteed! Includes 30 day money
Brand:
ES#:
3137098
Mfg#:
4131-3011
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 - +11HP +19LB/FT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with automatic transmission and a production date up to 12/94
Brand:
ES#:
3137214
Mfg#:
990-310
Back Ordered
ON SALE!
SAVE 20%
$249.00
This product was last offered at the strikethrough price on 05-02-2026
If you've upgraded your car or just want a bit more power from your stock vehicle, performance engine software helps maximize your car's potential by letting it know just where the limits are. Improve your driving experience with upgraded performance engine software from our selection of elite software tuners.
Lifetime Replacement
