1963-1982 Chevrolet Corvette Sidetube Slip-In Mufflers Hooker 21003HKR header-back-exhaust For Standard Cab/Short Bed models

For Standard Cab/Short Bed models only

and as a "green" solution for vintage hot rods or vehicles that did not originally come equipped with catalytic converters from the factory

1968-1972 Pontiac LeMans 250 CID

Note: Intended for Off Road Use Only on 1975-1979 Models

The American Thunder® exhaust systems are the perfect choice for the person wanting a deep powerful tone outside

1963-1982 Chevrolet Corvette Sidetube Slip-In Mufflers Hooker 21003HKR header-back-exhaust For Standard Cab/Short Bed modelsOverview For 4" sidetube sound control, Hooker builds long lasting slip in mufflers. These mufflers are easily removed for racing purposes and are available in a performance style glasspack or our quieter all metal reverse flow style for small and big block applications. Hooker mufflers produce a high level of sound control without restricting engine efficiency. Sold in pairs. Features Fits 4" Side Tube systems Big Block Reverse Flow Design Easily