So I'm looking at getting a turbo-back exhaust system for the wife's 2016 Ecoboost. I've been reading on the different setups from different vendors. Some of them offer complete turbo-back kits while other's I would have to piece together. My question is this... Why do some down pipe manufacturers state a tune is mandatory with their down pipe while others state a tune is not necessary? I'm speaking specifically about catted down pipes.
U.M.
U.M.