catalytic

Random misfire at high rpm... p0300 Changed spark plugs Going to do cat deletes tomorrow w big daddy defoulers Did some idling in the driveway and took some live readings of o2 sensors. I thought it was strange to see some negative voltage

Hey guys, just a question. Is it possible to run the OEM GT350 cats with piping on the regular GT’s? I have LTH but one day I know I’ll probably end up in a state that’ll do emission testing. With that being said, there’s a guy around here who went LTH on his GT350 and now has the factory Cats...

Hi, last friday a CEL popped up. P0430 code (Only one). P0430 Catalyst System Efficiency Below Threshold (Bank 2). I have no mods (stock cats, no CAI, no headers), Ran only on stock Tune. Only "mod" is a Roush AxleBack. I cleared the code and added a "cat cleaner" additive. Today, the light &...

I'm at the beginnings of a top mount TT Hellion install on my 19 GT. I'm at the part where I'm trying to remove the passenger side cat directly after the headers...but how in the hell am I supposed to break the nut facing the frame loose? I know a ton of you have removed this piece - please...

My check engine light (CEL) came on and I think I started noticing a very subtle amount of hesitation or surging at low rpm. Around 1800 to 2000. Just before I got it into the dealer for service, I thought I felt the surging a little more and the CEL started flashing for about 30 seconds before...