Exhaust question - 2011 WRX - Subaru WRX Forum
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post #1 of 2 Old 03-25-2012, 04:52 PM Thread Starter
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Exhaust question - 2011 WRX

My mechanic did some mods to my exhaust. Instead of starting from the cat, he cut the midpipe & reconnected it to the rest of the system. He used an inner pipe to connect both parts & welded to seal. Since the inner pipe has a slightly smaller diameter, could this create problems in the exhaust / motor?
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post #2 of 2 Old 03-25-2012, 07:01 PM
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Thats not uncommon practice for exhaust systems. Depending on how thick and long the pipe is it MIGHT be a restriction, but highly doubtful.

"2007 WRX- PPG'd, 20G- Tim Bailey tuned
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