Only had my K&N's in for about a week, no problems so far. I don't know if it's just in my head or if I actually got gains, but it feels like I have slightly better throttle response and power. I think the engine sound/exhaust sound is a bit louder too (which I like). The stock filters were fairly dirty anyways, so I'm sure the engine is breathing better in any event.
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2012 GM 6MT sports package | FI non res cf exhaust | K&N Drop Ins | Viper 3303 security system w/ tilt sensor | GTR start button | 35% rear 45% side window tint | Michelin PSS
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