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Flowmaster

Flowmaster 67-72 Ford F100 American Thunder Exhaust System - (w/o Side Tank)

Flowmaster 67-72 Ford F100 American Thunder Exhaust System - (w/o Side Tank)

Regular price $ 899.95
Regular price $ 989.95 Sale price $ 899.95
Free shipping on orders over $99 (contiguous U.S.) — flat $10.99 under $99. Shipping details
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✓ In Stock Only 1 left

This American Thunder exhaust system is specifically designed for 1967-1972 Ford F-100/F-250/F-350 2-wheel drive V8 trucks without a side mounted auxiliary fuel tank. The system is perfect for the person looking for an aggressive to moderate exterior and interior sound level. Starting just after the manifold downpipes, this exhaust system comes complete with a built-in H-pipe crossover and all mandrel bent 2.50-inch 409 stainless steel tubing that helps maximize the flow of the exhaust pulses for better performance and the added durability of stainless steel. The Super 44 Series performance mufflers will give any V8 a deep rumble with that classic Flowmaster tone. This system comes with your choice of three tailpipe exits, straight out the rear, side exit behind each rear tire, or dumped behind the rear tires. The system includes all hardware necessary for an at home installation. This exhaust system is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.

  • H-Pipe Style Crossover Pipe Improves Performance and Reduces Interior Sound
  • 2.5-Inch Mandrel Bent Tubing Improves Exhaust Flow for Better Performance
  • Includes all Necessary Hangers and Hardware for an at Home Installation
  • Super 44 Series Mufflers Give You a Deep, Classic Muscle Truck Sound
  • 3 Exit Options Allow You to Customize the Look of Your Truck
  • 409 Stainless Steel adds Corrosion Resistance and Durability
  • Backed by Flowmaster’s Lifetime Limited Warranty

Vehicle Fitment

  • 1967-1972 Ford F-100
  • 1967-1972 Ford F-250
  • 1967-1972 Ford F-350

Please verify exact fitment for your trim and engine before ordering.

Manufacturer Part Number: 817938

Images are for illustrative purposes only. Actual product may vary.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Manufacturer's Warranty — Flowmaster

Flowmaster warranty is tiered by material and product line. Lifetime Limited Warranty — stainless steel mufflers (FlowFX series excepted), all stainless steel exhaust systems (FlowFX included), stainless steel pipes, air intake kits and oiled-type filters (cleaning kits excepted), and other stainless steel exhaust accessories (exhaust tips and racing products excepted); this runs for the life of the original vehicle the part was installed on. Three (3) years — aluminized steel mufflers, exhaust systems and pipes, all exhaust tips, other non-race exhaust accessories, and commercial-vehicle applications of aluminized or stainless products. Two (2) years — Delta Force dry air intake filter elements. One (1) year — FlowFX series mufflers, Elite Series headers, and electronic components such as Delta Boost modules. Catalytic converters sold under the Flowmaster brand are excluded from this warranty. Coverage runs from the date of original purchase, to the original purchaser only, and only while the part remains on the vehicle it was originally installed on. Header coverage does not extend to damage caused by exhaust insulating wrap and is void if the header was fitted to a new or rebuilt engine during the initial break-in period. Sound-absorbing material inside “straight-through” mufflers degrades over time; Flowmaster treats that as normal wear, not a material defect. Also excluded: interior and exterior sound levels, cosmetic issues such as coatings and material discoloration, installation on a racing vehicle, improper installation or installation contrary to Flowmaster instructions, alteration, misuse, repair, accident, collision, undercarriage road impact or debris, and willful or negligent acts. To claim, the original purchaser returns the product either to the original retailer or directly to Flowmaster — a Returned Material Authorization (RMA) number must be obtained from Flowmaster first if returning to them — with proof of purchase showing place, price, product and date. Flowmaster's remedy is exchange for the same part number or refund of the purchase price at its option; installation, labor, towing and shipping costs are not covered.

Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Flowmaster. Contact us if you need help with a warranty claim.

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