Flowmaster Clamp-On Stainless Exhaust Tip - 3 in Inlet - 4-1/2 in Round Outlet - Black Ceramic Coated 15407B RIC58-0017-1 1979-1992 GMC G3500

Flowmaster Clamp On Stainless Exhaust Tip 3 in Inlet 4 1 2 in Round Outlet Black Ceramic Coated 15407B RIC58 0017 1 1979 1992 GMC G3500 1979 1992 GMC G3500 Features:Designed for street performance use with a mechanical and vacuum advanceMust be used with an MSD Ignition ControlSupplied with an HEI style distributor cap and rotor (accepts Cap A Dapts)Polished steel shaft is QPQ coated and guided by a sealed ball bearingMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeEasy to adjust mechanical advance with supplied springs and stop bushingsVacuum advance canister for improved economy (can be locked out)CARB E