Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2012 and newer vehicles.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
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#:
3659554
Mfg#:
025451TMS05
In Stock
ON SALE!
SAVE 35%
$178.18
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
Flash your ECU and unleash the power your BMW was meant to have.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms CARB certified for sale in all 50 states For BMWs with a model year up to 2011 only, will not work with 2012+ models
Get up to +75 hp and +105 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Increase power without sacrificing reliability
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Add up to 40hp and 80lbs/ft. torque to your N55 today! For vehicles with production date from 03/2011
Brand:
ES#:
3149349
Mfg#:
77-46311
Ships in 2 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$563.99
This product was last offered at the strikethrough price on 01-28-2026
Increase power without sacrificing reliability
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date up to 03/2011
Brand:
ES#:
3493058
Mfg#:
77-46314
Ships in 2 Business Days
14% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$563.99
This product was last offered at the strikethrough price on 06-03-2026
Increase power without sacrificing reliability
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Adds up to 40hp and 51lbs. x ft. torque - instantly!
Brand:
ES#:
2703096
Mfg#:
77-46302
Ships in 2 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$498.75
This product was last offered at the strikethrough price on 01-28-2026
Plug & play power — gain up to 40 horsepower in under one minute! 50 state legal performance!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms CARB Approved - Legal in All 50 States! CARB certified for sale in all 50 states
A piggy back tuner that allows you to adjust throttle response for peak performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Get up to +51 hp and +70 lb-ft through a safe and easy to use tuning module from RaceChip *Open Box - New Product*
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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.
Lifetime Replacement
