janglez, Agreed, too many mods can create more maintenance issues but some people don't mind doing it. However, just an exhaust should not increase maintenance issues and will not void any warranties. This is all I needed on my Z performance wise and it has increased my power (subjective, not dynoed), plus improved sound and almost 2 mpg better on gas (fact).
OP, good choice on FI exhaust. Can't answer your question on the test pipes sound but if your warranty concerns you, better do a little more research. Good luck!
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