I swapped the factory resonator for an H-pipe on my Mach 1 with active exhaust. Now at idle especially in Quiet or Normal I hear a noticeable air hissing sound from exhaust. It’s not a leak type hiss for 100% , just different flow sound. In Track mode it disappears.
With the stock resonator...
Has anyone experienced the same? After installing an H-pipe, and after about a week, on the same route, at the same speed, under identical conditions, it feels like the car drives better. I don’t have an ECU tune. Everything is stock and it seems like the 10R80 transmission is working much...
Hey everyone, this is my first post, so I just wanted to say hello and share a picture of my Mach 1 after getting a ceramic coating and PPF protection film done today.