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View Full Version : will i pass smog?



XI OV3
07-26-2012, 10:43 AM
it's that time of year that i have to get the smog done on my car. i'm running a perrin downpipe, rre rally cat, and greddy ti catback. its also dyno tuned. will those mods cause me to fail smog? if so can i just put my stock cat back on and leave the DP and catback on and pass that way? any information and suggestions will be greatly appreciated. thanks in advanced.