Borla XR1 Raceline

Borla Xr1 Raceline, Borla Xr1 Raceline Muffler

- Are you ready for a Borla XR1 Raceline no-compromises exhaust? Designed for drag and circle-track racing, the Borla XR1 Raceline series of components feature performance enhancements like you’ve never seen. How about a collector/muffler all in one? That’s the Borla XR1 Raceline system. In fact, in testing, the Borla XR1 Raceline muffler flowed better than a piece of straight, open pipe. Now that’s engineering—and that’s Borla XR1 Raceline.