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Flowmaster

Flowmaster 68-72 GM A-BODY 3in. American Thunder SS Crossmember-Back Exhaust System

Flowmaster 68-72 GM A-BODY 3in. American Thunder SS Crossmember-Back Exhaust System

Regular price $ 1,299.95
Regular price $ 1,429.95 Sale price $ 1,299.95
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 Crossmember-Back American Thunder system is custom designed for high horsepower and large cubic inch engines in 1968-1972 GM A-Bodies with a V8 engine. It's a true-dual exhaust system featuring all mandrel-bent 3.00-inch stainless steel tubing with a built-in H-pipe crossover assembly flowing into a pair of large cased Super 40 Series performance mufflers for maximum power and a deep powerful aggressive exhaust note. The large 3.00-inch mandrel-bent tailpipes are custom bent to tuck up high above the rear end and exit with a slight turn down under the rear bumper. The system is constructed from 409 stainless steel for maximum durability, includes all necessary hardware and hangers for installation and is covered by our Lifetime Limited Warranty. This system is also available in Aluminized steel and comes with a 3-year Limited Warranty, check out part# 17200.

  • Does Not Include Header Reducers or Factory Manifold Downpipes
  • Super 40 Series Performance Mufflers for Deep Powerful Sound
  • H-pipe Crossover for Maximum Power and Deep Tone
  • Includes Hangers and Hardware for Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Crossmember-Back True Dual Exhaust System
  • Large 3.00-inch Stainless Steel Tubing
  • Aggressive Exterior Exhaust Tone
  • Lifetime Limited Warranty

Vehicle Fitment

  • 1968-1972 Buick Skylark
  • 1968-1972 Chevrolet Chevelle
  • 1968-1972 Chevrolet El Camino
  • 1968-1972 Oldsmobile Cutlass
  • 1968-1972 Pontiac GTO
  • 1969-1972 Pontiac Grand Prix
  • 1970-1972 Chevrolet Monte Carlo
  • 1971-1972 Oldsmobile Cutlass Supreme

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

Manufacturer Part Number: 817200

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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