K&N short intake question
So I'm at this place where I typically have work done on my car and they were telling me how the gains from a K&N intake ($430) were about +14hp. I don't know a damn thing about CAI's so I wanted to get some thoughts. If those gains are true, then thats a pretty cheap way to gain some significant hp.
Also, more importantly, will a CAI VOID my warranty?
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