Flowmaster American Thunder Exhaust System for 1967-1972 Chevy/GMC C10/C15 - 817654

The Flowmaster American Thunder Crossmember-Back Exhaust System, part number 817654, is designed for 1967-1972 Chevrolet C10 and GMC C15/C1500 1/2-ton trucks with V8 engines, 2WD, and coil-spring rear suspension. This true dual exhaust system is built from 409 stainless steel and features 2.5-inch 16-gauge mandrel-bent tubing, a built-in H-pipe crossover, and dual Super 44 Series chambered mufflers for a deep, aggressive to moderate classic truck exhaust tone. Four available tailpipe configurations let you tailor the exit style while maintaining clearance for substantially lowered trucks.

Key Features & Specs:

• Series: Flowmaster American Thunder
• Type: Crossmember-back true dual exhaust system
• Vehicle Compatibility: Chevrolet C10 / GMC C15-C1500 1/2-ton
• Engine Compatibility: V8
• Drivetrain: 2WD
• Suspension Requirement: Coil-spring suspension
• Material: 409 stainless steel
• Tubing Diameter: 2.5-inch
• Tubing Construction: 16-gauge mandrel-bent stainless steel
• Crossover: Built-in H-pipe
• Mufflers: Dual Flowmaster Super 44 Series
• Muffler Design: Chambered
• Sound Level: Aggressive to moderate
• Exit Options: Straight rear, angled-down rear, dual side behind rear tires, or dump-style behind rear tires
• Wheelbase: Fits short and long wheelbase trucks
• Lowered Vehicle Clearance: Designed with clearance for substantially lowered applications
• Included: Hangers, clamps, mounting hardware, and installation components
• Part Number: 817654
• Warranty: Flowmaster Lifetime Limited Warranty

Fitment:

Fits applicable 1967-1972 1/2-ton V8 trucks with 2WD and coil-spring suspension.

• 1967-1972 Chevrolet C10 Pickup
• 1967-1972 GMC C15/C1500 Pickup

Fits both short and long wheelbase trucks.

Fitment Note: Designed specifically for 2WD trucks with coil-spring suspension.