Selling my Jb4 used flawlessly in my Q50 Red Sport for 3 years. I'm now ECUTEK tuned (Btuned) and no longer need this unit.

Included:
  1. JB4 Unit
  2. Fuel Wires (Installed)
  3. Original Data Cables
  4. Posi taps
Price: $350
Shipping: Continental U.S. Only