BOR XR-1 Mufflers

High 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 highest flowing racing muffler in its class and at a competitive price. Record-holder Hurley Blakeney has run BORLAs on his AA/AT Ford T-Bird because he loves the quieter driver compartment without giving up any power.Round - Made with the same patented, flow through design as the XR-1 Sportsman Oval. This Muffler is 5 inches in diameter and 15 inches long. Designed for door car/ roadster applications that require a compact round muffler.

XR-1® Sportsman Racing Muffler. 3.5" Center Inlet/ 3.5" Center Outlet 5" Round x 8" Long Body 13" Overall Length. Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. There is no logo embossment on this part. Hands down, BORLA®'s XR-1® raceline parts offer the best balance of sound and power. Best of all, it's made in the USA. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

XR-1® Sportsman Racing Muffler - 3.5" Center Inlet/ 3.5" Center Outlet 5" Round x 8" Long Body 13" Overall Length. Universal Part. Reversible Design.

Borla 3 -1/2in In/Out x 5in Round x 8in Long XR-1 Sportsman Shorty Racing Muffler

3.5" Center Inlet/ 3.5" Center Outlet 5" Round x 8" Long Body 13" Overall Length

Compact size is perfect for applications with limited space

Un-Notched necks are designed for weld in installation

XR-1® Stainless Sportsman Racing Mufflers

There is no logo embossment on this part

Universal muffler. Reversible design.

BORLA® XR-1 Sportsman Muffler

XR-1 Sportsman Muffler

Million Mile Warranty

XR-1 Raceline Muffler

XR-1 Sportsman Muffl

Exhaust Muffler

Muffler