Originally Posted by DamirM3
Adding a cold air intake how much HP would that add to the already 420hp ?
Also.. adding the Cold air. does that void the vehicle warranty ?
I dont think it adds any HP, I have the GruppeM intake on my car and I dont feel any difference besides the AWSOME sound it makes....Maybe it does but to minor to feel. As for warranty, If something happens to your engine I would suggest removing the Intake with the OEM and than taking it to the dealer.