Sooooo I need to know everything about headers in Arizona on my 05 mustang gt, I want to be smogable but I want headers, I dislike my stock header sound and won't mind a couple of extra horses. Please everyone and anyone all input is much appreciated!!

 

did you guys have sniffer testing or do they just plug into your on board computer?

 

I'm not sure, I've only been to the smoggy once with another car. It was a ford five hundred moms sedan. They plugged into the obd and I believe they put a little tube around her exhaust?


I put on some Axel backs by mbrp. That is ok right? I'm new to all this, I'll still pass smog right?

 

I know a lot of others that have installed headers and passed emissions tests. I believe mine will pass but has not in the past due to bad injector. You can always register it at an address that doesn't have testing in that area.

 

Thank you for the input I have hear Doug Thorley makes street/smog legal headers for the 3v 4.6L......