Reposition your intake air temperature sensor to maintain more accurate readings to maximize power output
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Alleviate the plague of heat soak on the street or track.
Reposition your intake air temperature sensor to maintain more accurate readings to maximize power output
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Alleviate heat soak on the street or track.
Brand:
ES#:
4304669
Mfg#:
014579TMSKT1
In Stock
ON SALE!
SAVE 25%
$150.99
This product was last offered at the strikethrough price on 06-13-2026
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 25%
$136.36
This product was last offered at the strikethrough price on 06-13-2026
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
Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 8,100rpm, improves throttle response, and improves power output - plus remembers your Sport Mode selection! For use with 93 octane fuel.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138988
Mfg#:
N4S54MEO
Ships on Aug 11, 2026
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 8,100rpm, improves throttle response, and improves power output! For use with 93 octane fuel.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138990
Mfg#:
N4S54OCT
Ships on Aug 11, 2026
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 8,100rpm, improves throttle response, and improves power output! For use with 91 octane fuel.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138975
Mfg#:
N4MSS54
Ships on Aug 11, 2026
ON SALE!
SAVE 10%
$349.00
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
Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 8,100rpm, improves throttle response, and improves power output - plus remembers your Sport Mode selection! For use with 91 octane fuel.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
3138987
Mfg#:
N4S54MEM
Ships on Aug 11, 2026
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
$314.10 USD
Free Shipping
Lifetime Replacement
More About Engine Chips, Tunes & Software
Add power and performance with special software upgrades from recognized tuning leaders like APR, Cobb, and Malone. Let our trained support staff show you how to pick the performance software upgrade that suits your driving preferences and budget.
