i bought my car used. yeah yeah but i got a good deal on it. and it had hfp exhuast and AEM short ram already on it. sounds like a charm. but the CEL comes on every now and then. im not sure what the other guy did to it.
well, i would suggest putting the stock intake back in and selling the AEM. they don't do much but make noise anyway. i know, i owned one. if you don't have the stock parts, check the FS forum. i'm sure you'll find some...that's my suggestion.