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Yeah, I had a flowmaster super 44 and honestly it sounded awesome but wreak havoc on my ears inside the cab. Never really noticed until I put the roush on that either I got back or gained some low end torque.
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2007 Ford F150 FX2 S.Cab, 5.4L., 20" wheels, Roush Offroad Exhuast, K&N Air Filter, Tinted Windows 
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