Borla XR-1 Racing Sportsman 3 inch Outlet / 3 inch Inlet Oval Muffler 2013-infiniti-ex37-esi5648856 This allows the driver to

This allows the driver to dial in the rear roll resistance to achieve the desired handling bias

We went through several designs to get to where we are now

9 Liter T-10D

Captive screws are used to eliminate lost hardware and to securely fasten to housing

The sound is further tuned via our Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

Borla XR-1 Racing Sportsman 3 inch Outlet / 3 inch Inlet Oval Muffler 2013-infiniti-ex37-esi5648856 This allows the driver toHigh 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