Fits MB Custom, Xtreme, Mullens. 4 into 2 into 1 Tri-Y Design. 1 3/4 - 1 7/8 Primary. 3 1/2" Collector - NO PAINT

Fits GRT, MK1, IROC, Rulman. 4 into 2 into 1 Tri-Y Design. 1 3/4 - 1 7/8 Primary. 3 1/2" Collector

Fits Rage, 23" out to inside of collector (Left side). 1 5/8 - 1 3/4 Primary, 3" Collector - 8" Collector Length. Crate Motor

Fits Rage, 23" out to inside of collector (Left side). 1 5/8 - 1 3/4 - 1 7/8 Primary, 3" Collector - 8" Collector Length. Crate Motor

Fits Rage, 23" out to inside of collector (Left side). 1 5/8 Primary, 3" Collector - 8" Collector Length. Crate Motor

Fits Hoffman, Kazzbuilt, Razor, Sidebitter. 1 3/4 Primary, 3 1/2" Collector.

Fits Hoffman, Kazzbuilt, Razor, Sidebitter. 1 5/8 - 1 3/4 Primary, 3" Collector. Crate Motor

Fits Hoffman, Kazzbuilt, Razor, Sidebitter. 1 5/8 - 1 3/4 - 1 7/8 Primary, 3" Collector. Crate Motor

Fits Hoffman, Kazzbuilt, Razor, Sidebitter. 1 5/8 Primary, 3" Collector. Crate Motor

Temporary non-high tempature paint. 

With its straight through design, the Schoenfeld Insert Muffler will reduce the noise level without excess back pressure. The insert is light weight with nothing to burn out.

ALL ELBOWS ARE EXPANDED ON A END 2 1/2" , 3 1/2" , 4" , 5" - 16 Ga.3" - 18 Ga.