Exhaust System American Thunder 64"-72" GM Chevelle El Camino GTO brake-tubing 1L engine with dual inlet

1L engine with dual inlet muffler

1968-1968 Pontiac Firebird 250 CID

The tailpipes in this system exit under the rear valance with a turn-down in the tailpipes

1987-1998 Jeep Cherokee 242 CID

Exhaust System American Thunder 64"-72" GM Chevelle El Camino GTO brake-tubing 1L engine with dual inletOverview: This American Thunder Crossmember Back exhaust system is custom designed for most 1964 1972 GM A body cars and is for the person looking for a complete 2. 50 inch dual exhaust system with a moderately aggressive exterior tone and a moderate interior sound. With easy fit in mind, these aluminized steel systems feature all mandrel bent tubing, an H pipe to equalize the exhaust pressures for maximum performance and deep sound and includes a