XR-1(r) Multi-Core Racing Muffler Shorty Collector Quad 2.25in Inlet/ 4in Outlet 6.75in Round X 14in Long Body 2242 When you see that mirror-polished

When you see that mirror-polished T-304 stainless steel tip with the Borla embossed on it

Collapsed Length (MM): 475

Only what you would expect from Borla

Diagnostics - Scan

Do NOT install on vehicles without O

XR-1(r) Multi-Core Racing Muffler Shorty Collector Quad 2.25in Inlet/ 4in Outlet 6.75in Round X 14in Long Body 2242 When you see that mirror-polishedThis is the HOT set up in drag racing. This patented, award and race winning vacuum Wave Collector was designed to replace your current open header collector and serves as a power producing merge collector and muffler all in a single unit. The technology in this unit results in pulling air through the engine faster, which creates more power. When an exhaust valve opens, an energy wave is created from the expanding combustion gases. When this wave