Gibson MWA 3.0" Center/3.0" Dual Oval Muffler Stainless Spark Plug Wire Set 1983-1992 GMC G3500

1983-1992 GMC G3500

1984-1995 Oldsmobile 98

Factory fitted FHR posts

Throttle Body Recommendations: Edelbrock #3869/#38693 or OEM drive-by-wire style

eliminating spillage

Gibson MWA 3.0" Center/3.0" Dual Oval Muffler Stainless Spark Plug Wire Set 1983-1992 GMC G3500Gibson MWA Muffler delivers Maximum Sound and the Best Muffler Flow PERIOD! 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 powerful sound. The MWA muffler is 100% Made in the USA and