1964-1967 Set includes: 1964-1967 2 TO 2-1/2" Front Exhaust Pipe with Powerglide 1964-1967 2-1/2" Intermediate Pipe 1963-1967 2-1/2" Magnaflow muffler MagnaFlow's Wide Open Performance Mufflers outflow OEM chamber style mufflers by as much as 167 percent. This reduces engine heat and backpressure and improves exhaust scaveging from the combustion chamber. MagnaFlow minimizes the power robbing effects of the OEM system to restore torque and horsepower to the engine.
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