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Old 03-25-2013, 06:43 PM   #4
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
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You should be fine to run a Stage 2 OTS map using an aftermarket downpipe mated to the factory catback exhaust. If you'd like for us to look over some datalogs to make sure everything looks good just send an email over to our customer service team and they can give it a once-over!

Marshall@COBB
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