Loud...not at all. In fact I just removed the OEM cat back system to install the Invidia Gemini cat back system to get some sound....which it does now.
Resonated test pipes...wow...never even gave that a thought....good think I live in a non-emissions area!
I think I may have finally figured-out a portion of my Z's history:
A past owner installed the Stillen Gen 3 intakes, and whatever these are along with an aftermarket exhaust system. Then before selling, they put the OEM cat back system back on.
OR...
The dealership I purchased from put an OEM exhaust system in order to sell.
Now I need to figure-out if a tune has been done...although probably not due to the two permanent error codes I have...(P0296, P0298 lean, post cat).
Is there a way to tell if a tune has been done?
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