Borla XR-1 Racing Sportsman 3 inch Outlet / 3 inch Inlet Round Muffler Suspension>Lowering Kits WirelessAir(TM) can be purchased with

WirelessAir(TM) can be purchased with peace of mind

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Derringers special coolant temp monitoring prevents power addition when the engine is too cold or overheated

a product of painstaking engineering and over 40 years of experience

Borla XR-1 Racing Sportsman 3 inch Outlet / 3 inch Inlet Round Muffler Suspension>Lowering Kits WirelessAir(TM) can be purchased withHigh quality austenitic stainless steel. Patented, race winning XR 1 Raceline technology. 3 options: Offset Made with the same patented, flow through design as the XR 1 Sportsman oval. The inlet outlet are offset to the same side of the muffler, to accommodate transmission and frame rail interference on some applications Oval BORLAs #1 selling racing muffler. Satisfies the needs of most racing applications because it is the lightest, most compact, and