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      01-06-2012, 07:55 PM   #53
robertm
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Drives: BSM 1M
Join Date: Oct 2007
Location: dfw

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Wasn't it Cobb that was saying they thought the axle back factory exhaust was very restrictive? This definitely proves them right. 16 whp, especially on a Mustang dyno, is huge power increase for just muffler change!

I can't wait to see what happens when the cats go away, a better FMIC is installed and better air intake added! I wouldn't be surprised if the car is gets close to 375 whp on the Mustang
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