Roush vs. Hushpower vs GT500 on 2011 Mustang GTCS.wmv

Comparison of Roush axle back vs. Hushpower axle back vs. GT500 axle back Exhaust on a 2011 Mustang GTCS. This car has an off-road Xpipe (no cats), stock over-axle pipes and stock resonators. This is an update of the previous video that compared the Roushes to the Hushpowers.

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