Gibson MWA 3.0" Center/Center 5.0" Round Muffler Stainless Steel 1346112 Dual Air Boss 8' Chute

Dual Air Boss 8' Chute with Launcher

292 cc Intake

2003-2019 Chevrolet Express 3500

Very strong from mid-range to high end torque and horsepower for LS engines with cathedral port cylinder heads

2 specification

Gibson MWA 3.0" Center/Center 5.0" Round Muffler Stainless Steel 1346112 Dual Air Boss 8' ChuteThe Gibson MWA round race Muffler delivers Maximum Sound and the Best Muffler Flow PERIOD in a 5. 0"compact competition ready package. This Straight thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3 in. straight pipe, improving power potential while keeping interior drone to a minimum. The MWA muffler has NO internal packing or weak baffles, allowing it to maintain a lightweight design with a unique and