Post by
joe603 »
https://forums.nicoclub.com/joe603-u34652.html
Tue Apr 03, 2007 10:27 am
For warranty, the stillen supercharger will come with a 3-year warranty on the engine.
Most bolt-on parts will not void the factory warranty; but you start adding NOS, and then you're in gray water. Nismo stuff is only warrantied if you have the dealer install the parts...not cheap.
Aftermarket exhaust systems increase flow, which in turn, increases HP. However, some cheaper brands don't do either, and have the distinctive "ricer" sound.
Headers are expensive, and can be very finicky if not perfectly installed. Nothing is worse than spending a grand on the exhaust, and it leaks...
Avoid underdrive pullies if you have or plan to have an aftermarket stereo. They decrease the effectiveness of your alternator output, and with the current draw of the amps, you'll run into trouble.