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Borla XR-1 multi-core racing muffler is a universal, reversible design intended for racing venues that require a muffler. The patented multi-core construction is tuned for maximum power, and T-304 stainless steel with 100% welded construction ensures durability and corrosion resistance. High-temperature continuous-filament fiber acoustic material controls sound, while the reversible layout gives installation flexibility for high-horsepower use.
Borla Universal XR-1 Multi-Core Racing Muffler 3.5in Center-Center 14in x 6.25in Round
