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02-13-2010
ok, im looking to buy some headers. i have read a few threads on different headers. now mass is strict on emissions. most headers come without cats except for the slp which comes at a price. if i install headers without cats this would set off the check engine light that would inturn fail emission inspections. would a custom tune turn off the check engine light if my gtp has no cats. as long as there are no codes the car passes inspection.
02-13-2010
yes, youd fail emissions, but it is super easy to tune the code out and be done with it. i had no EGR on my car, turned the code to no report, and then passed my inspections.
02-13-2010
Code is off for me too! But i live in KS where there are no inspections. YAY ME!
02-14-2010
so, when i purchase the tune, i need to request to have the code taken off. for not have cats on the car or would they no to do so if i have headers
02-14-2010
you would have to ask for it. i doubt they would just tune it out without letting or asking the customer first.
02-14-2010
Got headers & no EGR, my light nvr came on. But I also live in Kansas where no one care about emissions lol
OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
02-14-2010
i know zzp automatically turns off the cat and egr codes.
02-14-2010
Yeh, but dont most gp owners states that zzp tune is junk
02-15-2010
Cost me an L67Originally Posted by foursixer
OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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