yea i'm happy with them they put out some thump

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2007 Toyota Tundra Double Cab SR5 5.7L:Flowmaster Muffler 50 series Dumped,OEM Brush Aluminum Side Steps,OEM Bed Rails,OEM Bed Liner,XM Satellite Radio,O-NEX HID Lights 8k OEM Tow Mirrors,Volant CAI,OEM Headers, 2 Kicker Livin Lound 12 cvt subwoofers,Performance Teknique 1600 Class D Amp w/Boost controller,Readylift 2.5 leveling kit,MST 854 20 inch wheels/Cooper Zeon LTZ 275/55/20 tires "Livin Life in the Fast Lane