i have the pypes one. no CEL so far.Jay99 said:the two that seem the best for passing emissions was the magnaflow x with cats and a pypes x-pipe with 5.9 obdII cats
http://pypesexhaust.com/xpipes.html
http://pypesexhaust.com/images/Must-emission.jpg
last time i got mine done they didnt even start up my car. just plugged in the scanner for codes.joshheat25 said:I have bassani and I failed db level by 4 db am going tommorrow to try agian