Borla 40703 - XR-1 Multicore Collector Muffler Standard Best-Seller 25 Inch tall with ratings

25 Inch tall with ratings up to 12

1996-2023 Chevrolet Express 3500

4 (see application info to verify vehicle compatibility)

These watertight slates attach to each other by way of extrusion

Borla 40703 - XR-1 Multicore Collector Muffler Standard Best-Seller 25 Inch tall with ratingsThis 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