Gibson MWA 3.0" Center/Center 5.0" Round Muffler Stainless Steel 1346112 Very strong from mid-range to

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

1997-1997 Mercury Cougar

2003-2019 Chevrolet Express 3500

to the "good old boys" of NASCAR

2 specification

Gibson MWA 3.0" Center/Center 5.0" Round Muffler Stainless Steel 1346112 Very strong from mid-range toThe 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