Flowmaster 67-72 GM C10/C15 American Thunder SS Crossmember-Back Exhaust System

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 Crossmember-Back, the exhaust comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50-inch stainless steel tubing, a pair of Super 44 Series performance mufflers, and your choice of four tailpipe exits. One set slightly angled down to clear larger rear bumpers, one set straight out the back under the rear bumper, out the sides behind the rear tires for that classic truck look or a dump style exiting behind the rear tires level with the body. The system includes all hardware necessary for installation and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our Lifetime Limited Warranty. If you prefer Aluminized steel construction, check out system #17654 which comes with our 3-year Limited Warranty. Fits both short and long wheelbase trucks. Fits 1967-1972 Chevrolet/GMC C10, C15 1/2 ton trucks with V8 engines. Stainless Steel. - Aggressive to moderate sound Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

• Super 44 Series Mufflers for Deep Powerful Sound
• Includes Hangers and Hardware for Installation
• Mandrel-bent 16-gauge Stainless Steel Tubing
• Aggressive to Moderate Exterior Exhaust Tone
• Crossmember-Back True Dual Exhaust System
• H-pipe Crossover for Maximum Power
• Four Choices of Tailpipe Exits
• Lifetime Limited Warranty

The Flowmaster American Thunder Part Number 817654 exhaust system is designed for 1967-1972 Chevrolet and GMC C10 and C15 1/2-ton, two-wheel-drive trucks with V8 engines and coil spring suspension. This crossmember-back true dual exhaust system fits both short- and long-wheelbase models and delivers a moderate-to-aggressive interior and exterior exhaust tone. It is engineered to provide adequate clearance for substantially lowered vehicles while maintaining a performance-focused appearance and sound.
Constructed from mandrel-bent 16-gauge stainless steel tubing, the system uses a built-in H-pipe crossover to help balance exhaust flow and support performance. A pair of Flowmaster Super 44 Series mufflers produces a deep, powerful sound suited to classic truck builds and performance-oriented street applications. The kit includes the hangers and installation hardware needed for assembly, but it does not include exhaust tips, header reducer cones, or downpipes for factory manifolds.
Four tailpipe exit configurations are available to help match your truck’s style and rear-bumper clearance requirements. Choose from slightly angled-down outlets, straight exits beneath the rear bumper, side exits behind the rear tires, or dump-style outlets positioned behind the rear tires and level with the body. The Flowmaster 817654 American Thunder system is backed by a Lifetime Limited Warranty. This product may require acknowledgment of applicable emissions-related requirements before installation.

Features:

• Fits 1967-1972 Chevrolet and GMC C10/C15 1/2-ton two-wheel-drive trucks with V8 engines

• Flowmaster Super 44 Series mufflers provide deep, powerful sound

• Crossmember-back true dual exhaust system

• Mandrel-bent 16-gauge stainless steel tubing

• Built-in H-pipe crossover supports balanced exhaust flow

• Four tailpipe exit options for different truck styles and bumper clearances

• Includes hangers and installation hardware

• Designed to provide clearance for substantially lowered vehicles

• Fits both short- and long-wheelbase trucks

• Backed by a Lifetime Limited Warranty

Fitment:
Chevrolet C10 Pickup Base 1967
Chevrolet C10 Pickup Base 1968
Chevrolet C10 Pickup Base 1969
Chevrolet C10 Pickup Base 1970
Chevrolet C10 Pickup Base 1971
Chevrolet C10 Pickup Base 1972
GMC C15/C1500 Pickup Base 1967
GMC C15/C1500 Pickup Base 1968
GMC C15/C1500 Pickup Base 1969
GMC C15/C1500 Pickup Base 1970
GMC C15/C1500 Pickup Base 1971
GMC C15/C1500 Pickup Base 1972