Burger Motorsports JB4 for F9x M5/M8Power gains of up to 80hp and 100tq to the wheels on a stock vehicle without the risks of flashing! The M JB4 takes everything that is great about the all wheel drive F9x M5 & M8 platform and amps it up to the next level. Power gains of up to 80whp and 100wtq bring the car to life allowing 1 4 mile potential deep into the 10s. Unlike other generic tuning devices, the JB4 includes full CANbus integration via the OBDII port for advanced tuning, safety
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols