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The Borla XR-1 Slim Line racing muffler is a reversible, low-profile multicore design for tight-clearance, high-horsepower applications. Its 3" x 7.88" oval body and formed necks deliver free-flow performance with sound control from high-temperature stainless wool. Constructed of T-304 stainless steel with 100% welded joints, it offers installation flexibility and race-proven flow characteristics.
Borla XR-1 Racing Hooters Series Slim Line Muffler
