Borla XR-1 Sportsman 3.5" Center-Center 8"x5" Round - Racing Muffler. Universal part. Reversible Design For Installation Flexibility. (40004S)

BORLA's XR-1® raceline products are the choice of today's hottest racers. Featuring a patented uninterrupted-flow design and multi-core technology, BORLA's XR-1® mufflers actually outflow a straight piece of pipe. XR-1® race products are made in the USA and constructed of high-quality T-304 stainless steel for track tough durability. They meet the strictest noise requirements. Multi-Core, Collector, and Bullet Racing mufflers feature steel wool packing for sound control. Sportsman mufflers feature high temperature continuous filament fiber (CFF) for sound control. Hands down, BORLA®’s XR-1® raceline parts offer the best balance of sound and power.

Features:

• T-304 stainless steel will never rust — our thickest material.
• Free-flow design for improved performance.
• 100% welded construction is track-tough.
• Multicore, Collector, and Bullet Racing muffler feature steel wool packing for sound control.
• XR-1®'s race-proven design attenuates sound without restricting flow.
• Sportsman mufflers feature high temperature continuous filament fiber (CFF) for sound control.
• Reversible design for installation flexibility.
• Recommended for high-horsepower racing applications.