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Exhaust Exhaust Pipes, Systems and Components

Flowmaster

American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster

$1,153.95 $1,065.95 Save $88.00

SKU: F00L 17742

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In Stock
Ships by Aug 5
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Non-Returnable Item

Description

Part #: 17742

This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1/2 ton and 3/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The crossmember-back exhaust system 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 tailpipe exits. Either dual out rear under the bumper for a muscular look or dual out the sides behind the rear tires for that classic truck look. The system includes all hardware necessary for installation and is designed to accommodate both long and short wheelbases, with either an automatic or manual transmission and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. Notes: Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

Features:

  • Super 44 Series Mufflers for Deep Powerful Sound
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Aggressive to Moderate Exterior Exhaust Tone
  • Crossmember-back True Dual Exhaust System
  • H-pipe Crossover for Maximum Power
  • Does Not Include Header Reducers or Downpipes for Factory Manifolds

Exhaust System - American Thunder - Header-Back - 2-1/2 in Tailpipe - 2-1/2 in Tips - Steel - Aluminized - GM Fullsize Truck 1973-87 - Kit

MIA's Description

The Flowmaster American Thunder Exhaust System (Part #17742) provides a classic Flowmaster sound with a moderate-aggressive tone and dyno-proven performance increases. It features mandrel-bent aluminized steel piping and a Super 44 Series Delta Flow muffler. Designed for a straightforward, bolt-on installation, it includes all necessary hardware.

Fitment

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Specifications

BrandFlowmaster
Part NumberF00L 17742

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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