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335i Downpipes + tune ??

851 views 3 replies 3 participants last post by  officialjycine 
#1 ·
Hey guys, I was thinking about an AA or AR downpipe,
with either a JB4, COBB, or AA tune.
I was wondering. What is the best combination for overall sound and no CEL.
and will my car heat up quickly and is an AfterMarket Intercooler recommended? thnks.
 
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