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Old 04-17-2012, 04:57 PM   #12319
Joined: Mar 2008
Location: Rochester, NY
Oddometer: 59
Originally Posted by helotaxi View Post
In a perfect world you could gain a little extra effective flow from head velocity and a little precompression, but that also assumes perfect exhaust scavenge. For the filter to become the limiting factor, you're talking 20% increase in efficiency from exhaust tuning. That would be pretty impressive.
Cut out the CAT and put in on the dyno
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