EXHAUST SYSTEM-MAGNAFLOW-2 TO 2.5 INCH-SMALL BLOCK-L82-MANUAL-HIDEAWAY MUFFLER-74-79 (#E20277)

1974-1979
73-78 Corvettes from the factory had a round case muffler which can be seen below your rear valance or bumper. In 79-82 GM went back to an oval case muffler, similar to what was used in 63-72. This muffler tucked up under the car and was not visible under your bumper. We call these "Hideaway."

For off road use only.
No A.I.R Provisions
System Includes:
1974-1978 2-1/2" Hideaway Magnaflow Muffler
1968-1974 2-1/2" MANUAL (4 speed) intermediate pipe
1966-1974 2" TO 2-1/2" front exhaust pipe

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 SCAVENGING FROM THE COMBUSTION CHAMBER. MAGNAFLOW MINIMIZES THE POWER ROBBING EFFECTS OF THE OEM SYSTEM TO RESTORE TORQUE AND HORSEPOWER TO THE ENGINE.