Could someone please clarify if the CEL problem is only if you DO NOT already have a piggy back tune?
Don't both JB4 and Procede clear the CEL if you are running a tune? I thought this was the case. Thanks.
Koni sport, BMW performance springs, M3 arms and sways front and rear, M3 subframe bushings, Velocity toe arms, M3 front strut bar, Cobb, ETS FMIC, Vishnu charge pipe, RPI scoops, M3 steering wheel, City Vision angels, CDV delete, Advan RS 18 inch, Pilot SS