Pay in 4 interest-free payments of $74.88 Learn more
Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Vacuum exhaust valves with key fob remote system
Wirelessly connect the JB4 to your Bluetooth 4
i8 I15 i8 Roadster (B38X)
5″ Competition HD Intercoolers are comprised of an incredibly dense fin pack both internally and externally
Please have a professional shop assist with install
BMS F8X S55 JB4 Tuner Chassis_E39 Vacuum exhaust valves with keyGains are up to 80whp 100tq on pump gas and up to 120whp 140wtq on higher octane or E85 mixtures without the risks of flashing! The ultimate tuner for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between, with the push of a button on your steering wheel or phone. The JB4 installs and removes easily and includes many unique features not found in any other tune including user adjustable 1st and
US$ 1449.50
US$ 5450.00
US$ 1149.50
US$ 994.50
US$ 2399.50
US$ 629.50
US$ 449.50
US$ 594.50
US$ 2849.50
US$ 949.50
US$ 399.50
US$ 1299.50
US$ 1249.50
US$ 599.50
