Modification procedure question
Hi all, creeping round for ages, great site with a wealth of info.
Quick question, when getting a car "chipped" as well as installing an aftermarket x-pipe, is it mandatory for the car to be tuned on a dyno after the mods have been installed?
Sorry the car in question is an 09 E92 M3 with DCT
Last edited by skayfe; 02-25-2010 at 02:39 PM.