I had originally posted my concerns in this thread:
http://www.camaro5.com/forums/showth...161698&page=12
but my issues seem to be not isolated to the 30-40 or 40-50 range. It seems to be when shifting, like cruising at near 60, letting off the throttle for a bit and when I get back on it I feel the shudder. I took it into the dealership today. The complaint was officially written up as "Customer state when driving and slowing on acceleration feels like running over rumble strips" and the response after diagnosis was "test drive 7 miles isolated noise to aftermarket exhaust." They told me that the tech replicated my concern while driving and them put it up on the lift while another tech was inside the car to accelerate it. I'm not sure if it was in drive or not, although I don't think that anyone would put a car in drive and let the wheels spin while on a 4 point lift. Also, they stated "isolated noise" when it wasn't a noise I had a problem with; it was a stutter/shudder feel. So in the end they are blaming my MRT V2.0 aftermarket exhaust for the shudder which was installed according to MRT directions. I'm so confused at this point. If it was the exhaust, what could have gone wrong. It was installed in early September and nothing was noticed with car shudder until 3 weeks ago. I feel like taking it to another dealer at this point. Help!