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High NOX

Justin48

New member
Hey all i have a 02 gtp and need to get a cali smog check to get base tags... *bull**** when i have washington plates:th_shakinghead2:* but getting a stock tune pcm back in the mail and going to put the stock airbox in. but with a tuned pcm and fwi the NOX levels where off the charts. any idea if stock air box and tune will fix that? if not know of what i need to check to fix it? thanks!:th_thumbsup-wink:
 


true, if the car was running well, even if modded, it would pass a sniffer test (so long as you have a cat).
 
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