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Old 11-11-2012, 12:15 PM   #8
sbcrazy
Registered User
 
Join Date: Oct 2012
Location: Orange, CA
Posts: 16
My Ride: 02 325i
i'm thinking of going with the bimmerbreaks headers. how can I stay leagal in CA? do I have to add cats downstream or can you pass smog with using stock exhaust back w/o cats? also what o2 sims would i need. thanks for any info.
it would be going on a 02 325i auto.
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