mind if I smoke
New member
Im new to the diesel world. It seemed unanimous that I should get rid of my chip and go with a SCT tuner. I recently got and X3 and installed the performance tune. I have to say everyone was right, huge gain. Now Im wandering should i get a custom tune. I have a 4" turbo back exhaust, studded/deleted, CAI, and an atlas 80 ficm tune.