I have the Houston style ATR 3" downpipe on my car with no clearance problems. Be sure to request a turbo shield cut out template with your order. Although they did not send a template with my downpipe, they faxed one immediately upon request. Sam
I just mounted mine on the turbo tonight. It fits great as far as clearance all the way around. It does not even close to lining up with the exhaust system however. I need to figure that out now. The downpipe is 1 1/2" to high and about 1" off to the right side of the exhaust flange.