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: +7HP +7LB/FT gains!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date up to 02/2003
Brand:
ES#:
3138969
Mfg#:
N4MS4325
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: +7HP +7LB/FT gains!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date from 03/2003
Brand:
ES#:
3138996
Mfg#:
N745325
Ships on Aug 11, 2026
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Pump does NOT have a check valve
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This is Universal and Not a direct replacement for the Genuine Pump!
Painless plug-and-play IAT solution for elimination of MAF sensor in favor of Alpha-N tuning.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Drilling Required!
Brand:
ES#:
4142048
Mfg#:
014579TMSKT
In Stock
ON SALE!
SAVE 30%
$134.15
This product was last offered at the strikethrough price on 05-02-2026
Serious engine oil cooling for the most demanding engines
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For custom applications only. Not a direct bolt on.
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Transform your sound into a true sports car
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Includes $75 in gift cards for future purchases!
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
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
Lifetime Replacement
