Borla XR-1 Raceline Multi-Core Racing Muffler 3.5" Center Inlet / Center Outlet (401012)
Dominate the track and unlock maximum horsepower with the Borla XR-1 Raceline Multi-Core Racing Muffler. Engineered strictly for high-horsepower race configurations and extreme custom street builds, this universal round muffler features Borla's patented Multi-Core 4-tube internal design. This advanced racing technology actually flows better than a standard piece of straight tubing, ensuring your high-performance engine breathes completely unrestricted. It delivers a raw, aggressive exhaust note under heavy throttle while using high-temperature continuous-filament fiber acoustic material to maintain excellent sound control without robbing you of a single pony.
Built to withstand the brutal heat and vibration of competitive racing, this universal muffler is constructed with 100% welded premium T-304 stainless steel, outlasting inferior T-400 series alternatives. The smart, reversible design provides ultimate fabrication flexibility, allowing it to be welded into a wide range of custom exhaust systems. It arrives in a classic natural mill finish that can easily be brushed or polished to match your show-car or track setup. Proudly made in the USA, this race-proven unit is the ultimate high-flow upgrading solution for any serious performance vehicle.
Features
- Patented XR-1 Multi-Core 4-tube internal design flows better than straight tubing
- Engineered specifically to maximize flow, horsepower, and torque on high-power applications
- Constructed from 100% welded premium T-304 stainless steel for unbeatable track durability
- Features a fully reversible design with a 3.5" center inlet and 3.5" center outlet
- Packed with high-temperature continuous-filament fiber (CFF) for deep acoustic control
- Dimensions: 6.25" round body, 14" case length, and 19.75" overall length
- Proudly manufactured in the USA
Fitment
- Universal Fitment
- Universal Custom Exhaust Applications
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