Thread: Any videos with secondary cats removed with NPP?
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Old 05-05-2016, 11:28 AM   #7
SS 1LE
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Quote:
Originally Posted by SSHULK View Post
hey did you get any codes from doing this? I was thinking of removing the secondary cats
These cats are after the o2's, so you shouldn't get any codes unless the exhaust welder sucks.
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