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.
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 2011 model year vehicles or older.
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.
Not for sale or use in the state of California.
Remove the dead area from your throttle pedal.
Reposition your intake air temperature sensor to maintain more accurate readings to maximize power output
10X Entries For Our 25th Anniversary Sweepstakes!
Alleviate heat soak on the street or track.
This product was last offered at the strikethrough price on
06-13-2026
Remove the throttle lag and get more instant response.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-17-2026
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
Maintain driveability and reliability while adding up to 40 HP and 55 lb/ft of torque! For Mid-2012 to 2013 vehicles.
For limited use in California, please see full description. CARB certified for sale in all 50 states
For mid 2012 - 2013 vehicles with type B TMAP harness only!
Version 1.
Flash your ECU and unleash the power your BMW was meant to have.
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
Increase power without sacrificing reliability
For vehicles with production date up to 03/2011
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-17-2026
Increase power without sacrificing reliability
Add up to 40hp and 80lbs/ft. torque to your N55 today!
For vehicles with production date from 03/2011
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
01-28-2026
Increase power without sacrificing reliability
Adds up to 40hp and 51lbs. x ft. torque - instantly!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
01-28-2026
Maintain driveability and reliability while adding up to 40 HP and 55 lb/ft of torque! For 2011 to early 2012 vehicles.
Not for sale or use in the state of California.
For 2011 to early 2012 vehicles with type A TMAP harness only!
This add on kit for BMW N54 engines allows your JB4 to "2step" the engine
Plug & play power — gain up to 40 horsepower in under one minute! 50 state legal performance!
CARB Approved - Legal in All 50 States! CARB certified for sale in all 50 states