thanks guys...i'll just go get me a replacement filter then. But i got a question...what's the diameter on the AEM CAI pipe for a gsr? Cause I got one of those cheapo's AEM style from eBay and mine was 2.75" only. I thought it would be atleast 3 inches, but i don't know. Is AEM cai pipe all 3inches? cause i might get me a real AEM CAI this time if it's 3inches.