Wirelessly connect your JB4 to your phone!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Connect to 1998-2018 BMW OBD2 systems with a laptop.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4508968
Mfg#:
01KDCABLE
In Stock
$33.99
This product was last offered at the strikethrough price on 02-20-2026
Access your BMWs DME wirelessly by connecting to your phone! The enthusiast's tool of choice for xHP Flashtool and many other transmission and engine tuning options.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
With the all-new Kies WiFi Enet Adapter, you can now use your favorite apps, wirelessly, from one convenient dongle!
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Fuel-It! CANfuel allows your ECU to control up to 8 fuel injectors sequentially in addition to an ethanol content sensor, low fuel pressure sensor, extra pressure sensors, EGT probes, external fuel pumps, and much more.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For N54 equipped E chassis vehicles only
Alter parameters and fine-tune — wirelessly!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For use with N54 JB4 systems and any JB4 manufactured prior to 2017. Please check board diagrams to properly identify your JB4 before ordering.
Brand:
ES#:
3508698
Mfg#:
JB4-BT
In Stock
$149.00
This product was last offered at the strikethrough price on 05-12-2026
Plug & play power — gain up to 100 horsepower on a stock car, 160+ horsepower on a modified car!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
Brand:
ES#:
3508712
Mfg#:
JB4N54
Ships in 5 Business Days
$479.00
This product was last offered at the strikethrough price on 05-19-2026
Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2011 model year vehicles or older.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
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
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 4 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 Adds up to 40hp and 51lbs. x ft. torque - instantly!
Brand:
ES#:
2703096
Mfg#:
77-46302
Ships in 4 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.
$498.99
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
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
