Flowmaster Outlaw Muffler - 2-1/2 in Center Inlet - 2-1/2 in Center Outlet - 7 in Long - 4-1/2 in Diameter - Stainless - Black HSLRG11SASM61 Prevent cam bolts from backing

Prevent cam bolts from backing out at any RPM or load with our cam lock plate and bolt kit for GM GEN III/IV 3-bolt camshafts

Mounts the pump in approximately the same position as the factory long water pump bracket without using the exhaust bolt holes

095" wall steel tubing is notched and has uniform bends

1955-1959 GMC 250

Flowmaster Outlaw Muffler - 2-1/2 in Center Inlet - 2-1/2 in Center Outlet - 7 in Long - 4-1/2 in Diameter - Stainless - Black HSLRG11SASM61 Prevent cam bolts from backingUniversal Race Muffler Not a direct fit. Some adaptation required. This muffler is directional. The internal rings lean back towards the outlet of the muffler. Round Case Allows Install In Limited Space Apps Designed for Maximum Horsepower and Torque Minimal Decibel Reduction Race Application Where Muffler Rules are in Effect No Internal Packing To Blow Out Premium Flowmaster Quality Polished Embossed Flowmaster Logo High Temperature Ceramic Coating