These lightweight extended exit race mufflers are made of 304 stainless steel and tig welded for optimal performance. The extended exit race mufflers are a perfect option for side exit cars where the exact muffler exit length is still undetermined. The 4" exit allows you to cut to your desired length once fit on the chassis.
Inlet/Outlet Diameter: 4 1/2" OD – Muffler Body 5” OD X 8” Long – 12” Overall Length