So it's a single exhaust for non-SVT's. (being as you state only one muffler)
...also .4" piping (2/5) is tiny...
Do you mean 2.5" single exhaust piping?
An aftermarket exhaust should just be a Bolt-On... The stock exhaust is a bolt on...
BTW japanese steel sucks. I know - I lived there for almost 3 years... They import most of their metal used from the US so it drives the prices way up... (don't even think about buying wood over there - yikes!
)
How about some dyno numbers and prices when available... REAL numbers, not crank guesstimates too...
