2007-2012 Nissan Altima Discussion (2.5 & 3.5)
Hey all. First time posting, but been reading these forums for a while. Just changed out the J pipe. The cat before the muffler completely collapsed and the car wouldn't run. Now it runs and no more exhaust leaks (flex pipes were going, too). The idle is a bit high. Between 1k and 1200. I did...