high quality austenitic stinless steel. Patented, race-winning XR-1® Raceline technology.
2 options:
Oval -- BORLA's #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. The choice of winners from top Mustang drag racers to Baja Off-Road trophy trucks.
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.
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