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      12-27-2012, 04:46 PM   #37
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Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario

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Great work Tony...

Again to my previous question because I'd be interested in further custom tunability and parts....

I'd assume it would be just as easy to run a single pipe DP so that I could attach a custom straight through exhaust.

Single pipe is usually less weight and more open flowing without getting a open/close valve at the DP. The pipe your running on that current DP looks to be a 4", but I could be wrong.

I'd imagine you'd see some nice gains even at maintaining a 3" straight through pipe instead of tapering to meet the stock exhaust.

Just asking out of my own curiousty.
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