FLOWMASTER AMERICAN THUNDER CROSSMEMBER-BACK EXHAUST SYSTEM #17654 ABRA6011 Includes a built-in rev limiter

Includes a built-in rev limiter

4 stage selector mode allows max Speed adjustment between low

Dust blower

Thread 1/2" UNF

It contains no nitrites or petroleum products

FLOWMASTER AMERICAN THUNDER CROSSMEMBER-BACK EXHAUST SYSTEM #17654 ABRA6011 Includes a built-in rev limiterFLOWMASTER AMERICAN THUNDER CROSSMEMBER BACK EXHAUST SYSTEM 1967 1972 Chevrolet GMC C10, C15 1 2 Ton trucks with V8 engine. PART# 17654 "This American Thunder exhaust system is specifically designed for 1967 1972 Chevrolet and GMC C10 and C15 1 2 ton 2wd trucks with coil spring suspension. The system is perfect for the person looking for a moderate to aggressive interior and exterior sound level. Starting at the cross member back, the exhaust comes