Well I installed my Perrin Equal Length headers today. I put everything back together correctly. Reset my ECU, started up the car and went for a drive. It seemed to run fine, but then it started having idle issues and then would just die on me. Now it wouldn't die everytime, but it would do it every few times I come to a stop cruising out of throttle. I would watch my wideband and notice that it is running very rich at partial throttle, and then get way rich when I try to go WOT. I'm running a SZ55, with Perrin FMIC, PE 850 injectors, Perrin inlet, Perrin BigMAF, full catless exhaust, Cobb protuned, AVCR boost controller, Walbro fuelpump. I was thinking that maybe my front 02 sensor might have been damaged, but I used the correct socket with a slit for the wire so I find it hard to believe it was damaged. Anybody else have an opinions or ideas. Everything is really tight and bolted up right without any leaks.