Originally Posted by Lambeau

Yes, there's an exhaust leak out of the tailpipes! When you stop, the exhaust will drift towards the front unless you're parked into a headwind and of course the smell will come through the windows or to the base of the windshield where it can be drawn in with the HVAC fan. I have over 30,000 miles on this mod and have never had an issue with an exhaust leak from anywhere but the tailpipes.