Quote:
Originally Posted by limeypride
I had an X5M for a short while that I tuned with a JB4 piggyback. Right now, I have an M8 Comp Gran Coupe tuned with another JB4 piggyback.
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When you say "tuned with JB4" do you mean plug it into the TMAP sensors and OBD port and go or do you/Burger make changes to the JB4 as you go?