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Utilizing a patented floating bracket system
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Three cutting edges for long life
steel wire reinforced silicon air tube and (3) the 2x2 twill carbon fiber cover
Simply peel off carefully and reinstall as needed
Borla XR-1 Multi-Core 3in Ctr-Ctr Oval 16in x 4.25in x 7.88in Rotary Engine Equipped Racing Muffler - 400371 fits_1977-1983`BMW`3 Series Utilizing a patented floating bracketXR 1(r) Multi Core Racing Muffler. 3" Center Inlet 3" Center Outlet 4. 25" x 7. 88" Oval x 16" Long Body 21" Overall Length. Compact size is perfect for applications with limited space and can be used on a wide range of vehicles. It features BORLA(r)'S patented Multi Core 4 tube design for maximum flow, horsepower, and torque. The Multi Core portion of XR 1 mufflers flows better than straight tubing. Recommend for high horsepower applications.
