Went to look at the MS6 at lunch time again. This is to the people looking to get a aftermarket exhaust. Clearly the stock exhaust is more then adequate handle 300whp with stock 2.5 exhaust. I was surprised to see that this car lacks a mid resonator that the proteges have. The exhaust is nice and straight, only thing bottleneck I can see is the cat and precats which can be replaced with catless downpipe and a high flow cat. I dont have the article handy with me but there was a test done that 2.5inch piping is more then enough to put down 300hp to the wheels on turboed cars, anything bigger then that is just for show.