Corsa Variable Sound Level Exhaust System - Axle-Back - 2-3/4" Diameter - Dual Rear Exit - Dual 4" Black Tips - Stainless BR4001 Housing includes vent

Housing includes vent

The two-piece aluminum body uses a single 3/8"NPT inlet port on the bottom

390 in Bore

Closes at pressures 30psi and lower

Corsa Variable Sound Level Exhaust System - Axle-Back - 2-3/4" Diameter - Dual Rear Exit - Dual 4" Black Tips - Stainless BR4001 Housing includes ventRetains GM factory axle pipes with AFM valves Requires Factory GM NPP Valve Module for Installation Custom Tuned And Aggressive Exhaust Note Robust Valve Assembly And Components Are Designed To Last Over One Year of Valve Research And Development No Drone At Cruise Regardless Of Valve Position Or Mode 304 Stainless Steel Construction Flows 18 Percent Better Than Stock Dual Walled Polished Stainless Steel Tips Easy Bolt On Installation Made In The USA