Flowmaster 67-72 GM C10/C15 American Thunder 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 aluminized 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 3-year Limited Warranty. If you prefer Stainless Steel construction, check out system# 817654 which comes with our Lifetime Limited Warranty. Notes: Fits both short and long wheelbase trucks. Fits 1967-1972 Chevrolet/GMC C10, C15 1/2 Ton trucks with V8 engine. - Aggressive to moderate sound Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

• Does Not Include Header Reducers or Downpipes for Factory Manifolds
• Super 44 Series Mufflers for Deep Powerful Sound
• Includes Hangers and Hardware for Installation
• Mandrel-bent 16-gauge Aluminized 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

The Flowmaster American Thunder Part Number 17654 crossmember-back exhaust system is designed for 1967-1972 Chevrolet and GMC C10 and C15 1/2-ton 2WD trucks with coil spring suspension and V8 engines. Compatible with both short- and long-wheelbase applications, this system delivers an aggressive to moderate interior and exterior exhaust tone while providing the performance and fitment expected from a dedicated classic truck exhaust system.
The system features a built-in H-pipe crossover, mandrel-bent 2.50-inch aluminized steel tubing, and a pair of Flowmaster Super 44 Series performance mufflers for a deep, powerful sound. Four tailpipe exit configurations are available, including slightly angled-down outlets for clearance around larger rear bumpers, straight exits beneath the rear bumper, side exits behind the rear tires, and dump-style outlets positioned level with the body. The design also provides suitable clearance for substantially lowered vehicles.
Flowmaster Part Number 17654 includes hangers and installation hardware, but does not include exhaust tips, header reducer cones, or downpipes for factory manifolds. The system is covered by Flowmaster’s 3-year Limited Warranty. For stainless steel construction and a Lifetime Limited Warranty, consider Flowmaster system Part Number 817654. This product is intended for applicable off-road or competition use where required; verify local emissions and vehicle regulations before installation.

Features:

• Application: Fits 1967-1972 Chevrolet and GMC C10/C15 1/2-ton 2WD trucks with coil spring suspension and V8 engines

• Construction: Mandrel-bent 16-gauge aluminized steel tubing

• Exhaust Design: Crossmember-back true dual exhaust system

• Crossover: Built-in H-pipe crossover helps balance exhaust pulses and support performance

• Mufflers: Super 44 Series mufflers provide a deep, powerful exhaust sound

• Sound Level: Aggressive to moderate interior and exterior exhaust tone

• Tailpipe Exits: Four exit configurations accommodate different bumper and body styling preferences

• Installation: Includes hangers and hardware required for installation

• Fitment: Compatible with short- and long-wheelbase trucks and provides clearance for substantially lowered vehicles

• Exclusions: Does not include header reducers, downpipes for factory manifolds, or exhaust tips

• Warranty: Backed by a 3-year 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