STILLEN G3 Ultra Long Tube Intake

spiderman

I'm thinking of adding the Stillen cat back exhaust and intakes, but I believe this voids the Nissan warranty. Doesn't this bother anyone, especially on a first year release? It is OK to add the Nismo parts (i.e. cat back), as the warranty will still be in effect. How's the Nismo versus others? I'm not looking to race here, I just want a better sound and if performance comes too, all the better.

thanks for your insight!

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