Borla Universal XR-1 Collector Muffler - 2.375in Inlet 4.5in Outlet 20.5in x 6.75in Round 40703

BOR XR-1 Mufflers

Exhaust Muffler

Merge Collector And Muffler In A Single Unit

This is THE HOT set up in drag racing. This patented, award and race-winning product was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit.

XR-1 Stainless Collector Muffler.