TBR M-7 V.A.L.E.™ non-homologated Oval Slip-On Aluminum Muffler (08-13)Lighter than stock and easy to install, high performance M-7 slip-on features custom bent thinwall stainless steel s-bend tube, a brushed aluminum alloy canister and patented V.A.L.E. attachment system. This exhaust will increase torque and significantly enhance horsepower in th..