There are a lot of mods you can do that won't void your warranty. Intake and Exhaust are the most obvious. When you start doing Pulleys or Headers or an ECU then you're getting somewhat close to that "iffy" area.
It all comes down to the dealer being able to prove that your mod is what broke the car.
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2009 NISMO # 0193 | QAB | Albums! | 05.04.10 (Dynojet) 291.94hp/248.28tq
Oil Cooler (DIY) | Custom Headlights | GTSPEC Braces | F.I. Long Tube Headers
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