Borla XR-1 Sportsman Racing Muffler - T-304 Stainless Steel Universal Performance Muffler

The Borla XR-1 Sportsman Racing Muffler is a race-proven, straight-through performance muffler engineered for motorsports competitors and serious street performance enthusiasts who demand maximum exhaust flow without sacrificing sound control. Part of Borla's legendary XR-1 Raceline family, the Sportsman series delivers an outstanding balance of performance and acoustic management — all backed by the brand trusted at the highest levels of professional motorsport.

Premium Materials & Construction:

• Built from aircraft-quality T-304 austenitic stainless steel for lifetime corrosion resistance — will never rust
• 100% welded, one-piece construction for maximum structural integrity under extreme heat and competition conditions
• Natural mill finish that can be brushed or polished prior to installation
• Made in the USA — crafted to the exacting standards of the world's most experienced exhaust brand

Performance-Driven Technology:

• Free-flow straight-through design minimizes exhaust backpressure for measurable horsepower and torque gains — engineered to outflow a straight piece of pipe
• High-temperature Continuous Filament Fiber (CFF) acoustic packing delivers effective sound attenuation without restricting exhaust flow
• Reversible inlet/outlet design provides installation flexibility across a wide range of exhaust system configurations
• Compact form factor suits builds with tight packaging constraints
• Un-notched necks designed for weld-in installation; compatible with wide band clamps when clamping is preferred

Race Heritage, Street Ready:

• Part of Borla's XR-1 Raceline — trusted by competitors across drag racing, circle track, and road racing disciplines
• Engineered to satisfy sound requirements for sanctioned racing while maintaining peak performance output
• Backed by Borla's Million-Mile Warranty, reflecting the exceptional durability built into every unit

The Borla XR-1 Sportsman muffler line is available in multiple configurations — including oval and round case styles — to suit a wide variety of performance builds, from dedicated race cars to aggressive street machines. Select the individual variant that matches your exhaust tubing diameter and space requirements for a competition-proven upgrade.