Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Unlock additional power and performance with the JB4 tuner
Quick and simple add-on for increased power!
Plug & play power — gain up to 100 horsepower on a stock car!
For G-Chassis Vehicles Only; Not for sale or use in California
Plug & play power — gain up to 100 horsepower on a stock car!
For F-Chassis Vehicles w/ Type-B Harness Only; Not for sale or use in California
For vehicles with a Type-B Harness only (See Photos for more details)
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.
For N54 equipped E chassis vehicles only
Plug & play power — gain up to 100 horsepower on a stock car, 160+ horsepower on a modified car!
Not for sale or use in the state of California.
This product was last offered at the strikethrough price on
05-19-2026
Plug & play power — Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures!
Plug & play power — gain up to 130WHP on a stock vehicle without the risks of flashing!
For models with the Gen3 engines only (B48N/B48P/B48TU2 & B58N/B58TU2)
Plug & play power — gain up to 100 horsepower on a stock car!
For F-Chassis Vehicles w/ Type-A Harness Only; Not for sale or use in California
For vehicles with a Type-A Harness only (See Photos for more details)
Plug & play power — gain up to 60 horsepower on a stock car, 80+ horsepower on a modified car with a B58!
Not for sale or use in the state of California.
Alter parameters and fine-tune � wirelessly!
For use with N54 JB4 systems and any JB4 manufactured prior to 2017. Please check board diagrams to properly identify your JB4 before ordering.
This product was last offered at the strikethrough price on
05-12-2026
Quick and simple add-on for increased power!
For FWD models with 4 wire TMAP Sensor
Plug & play power — gain up to 100 horsepower on a stock car!
For F-Chassis Vehicles w/ N63TU Engine Only; Not for sale or use in California
For vehicles with an N63TU engine only
Plug & play power — Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures!
Plug & play power — gain up to 50 horsepower on a stock car, 100+ horsepower on a modified car!
For vehicles with electronic waste gate; not for sale or use in the state of California.