Quick question guys I had my truck tunes by kory (efi) 5 stage, I just out a mbrp 4 inch turbo back and was wondering if I needed my truck re tuned?? Thanks guys
Thanks! I wasn't thinkin it would but I m not real familiar with the tunes and how touchy they are, we re still old school big motor carburetor guys that drag race down here. We ll turn the wrenches on the old duramaxs but just one minor stuff lol