817654, 1967, 1968, 1969, 1970, 1971, 1972, gm, gmc, chevrolet, truck, chevy, pickup, exhaust, kit, mufflers, upgrade, mid, pipe, x, pipe, c10, c15, c-10, c-15 American Thunder Kit Crossmember back 409S - Dual Rear or Side Exit - Moderate/Aggressive Sound Exhaust System Kit Fits 1967 to 1972 Shortbed/Longbed GMC and Chevrolet C10 and C15 1/2 Ton 2 wheel drive pickups with a V8 engine using the coil spring suspension only Fits 1967 to 1972 Shortbed/Longbed GMC and Chevrolet C10 and C15 1/2 Ton 2 wheel drive pickups with a V8 engine using the coil spring suspension only. Flowmaster's American Thunder crossmember-back exhaust system for the 1967 - 1972 GM C10/C15 1/2 ton 2WD (Coil Spring) pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This crossmember-back DOR/DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2.50 in. mandrel bent 409S stainless steel tubing and all the hardware necessary for a great fitting installation. (Stainless tips sold separately). This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. X-Member back 409S 67-72 GM C10/C15 AMT
