*Blk_96_Stang_GT*

I checked the mils and they were all in so i was really confused because ive had the H for a while now and never had a problem with that, the only thing new was the American Thunder, and shouldnt it say Flowmaster on the tips? Because mine dont.

Dan04COBRA

The shop might have shut off the fuel pump for whatever reason. I'd double check. Don't rule ANYTHING out like you just did, without looking again.

I'd start with the IAC & TPS.

He charged you over $200 to install a cat-back? Um.... I'd expect atleast a $150 credit from the guy.

JJ03MustangGT

+1 on the tps...i had that problem back when i had a tacoma....changed the sensor and it never gave me another problem

*Blk_96_Stang_GT*

No he didnt charge me anything to install it, i had to pay the difference between the flows and the stock catback, since the insurance wouldnt pay for it all. And we just got the check from the insurance so in the end i end up paying only 90bucks for the flows.