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Flowmaster 68-72 GM A-BODY 3.0in. American Thunder Crossmember-Back Exhaust System

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 aluminized 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 aluminized steel and includes all necessary hardware and hangers for installation and is covered by our 3-year Limited Warranty. This system is also available in Stainless steel and comes with a Lifetime Limited Warranty, check out part# 817200. Fits 1968-1972 GM A-Body, 3.00 inch Aluminized Steel - Systems do not include header reducer cones or downpipes to connect to factory manifolds.
  • 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 Aluminized Steel Tubing
  • Crossmember-Back True Dual Exhaust System
  • Aggressive Exterior Exhaust Tone
  • Large Dual 3.00-inch Tubing
  • 3-year Limited Warranty

The Flowmaster 17200 American Thunder Crossmember-Back Exhaust System is designed for high-horsepower and large-displacement V8 engines in 1968-1972 GM A-Body vehicles. This true-dual exhaust system uses large 3.00-inch mandrel-bent aluminized steel tubing to support strong exhaust flow while providing a deep, powerful, aggressive exhaust tone. The system is engineered to replace the exhaust components behind the crossmember and includes a built-in H-pipe crossover for improved balance, performance, and sound quality.
A pair of cased Flowmaster Super 40 Series performance mufflers delivers the signature deep tone associated with the American Thunder line. Custom-bent tailpipes route high above the rear axle and exit with a slight turn-down beneath the rear bumper for a clean, functional fit. Constructed from durable 16-gauge aluminized steel, the system includes the necessary hangers and installation hardware. It is covered by Flowmaster's 3-year Limited Warranty.
This exhaust system fits select 1968-1972 Buick Special, Buick Sportwagon, and Pontiac Tempest applications with V8 engines. Header reducer cones and downpipes required to connect the system to headers or factory exhaust manifolds are not included. Verify vehicle configuration and exhaust connection requirements before installation. The Flowmaster 17200 system is also available in stainless steel under part number 817200, with a Lifetime Limited Warranty.

Features:

  • Application: Fits select 1968-1972 GM A-Body vehicles with V8 engines, including Buick Special, Buick Sportwagon, and Pontiac Tempest
  • Exhaust Design: Crossmember-back true-dual exhaust system
  • Tubing: Large 3.00-inch mandrel-bent 16-gauge aluminized steel tubing
  • Crossover: Built-in H-pipe crossover supports strong exhaust flow and a deep exhaust tone
  • Mufflers: Includes cased Flowmaster Super 40 Series performance mufflers
  • Tailpipes: Custom-bent tailpipes tuck above the rear axle and exit beneath the rear bumper with a slight turn-down
  • Sound: Produces a deep, powerful, aggressive exterior exhaust tone
  • Installation: Includes hangers and hardware for installation
  • Compatibility: Header reducer cones and factory manifold downpipes are not included
  • Warranty: Backed by a 3-year Limited Warranty

Fitment:
Buick GS Base 1970
Buick GS Base 1971
Buick GS Base 1972
Buick GS 350 Base 1968
Buick GS 350 Base 1969
Buick GS 400 Base 1968
Buick GS 400 Base 1969
Buick GS 455 Base 1970
Buick GS 455 Base 1971
Buick GS 455 Base 1972
Buick GS 455 GSX 1970
Buick Skylark 350 1970
Buick Skylark 350 1972
Buick Skylark Base 1968
Buick Skylark Base 1969
Buick Skylark Base 1970
Buick Skylark Base 1971
Buick Skylark Base 1972
Buick Skylark Custom 1968
Buick Skylark Custom 1969
Buick Skylark Custom 1970
Buick Skylark Custom 1971
Buick Skylark Custom 1972
Buick Special Base 1968
Buick Special Base 1969
Buick Sportwagon Base 1968
Buick Sportwagon Base 1969
Buick Sportwagon Custom 1968
Buick Sportwagon Custom 1969
Chevrolet Chevelle 300 1968
Chevrolet Chevelle 300 Deluxe 1968
Chevrolet Chevelle 300 Deluxe 1969
Chevrolet Chevelle Base 1968
Chevrolet Chevelle Base 1970
Chevrolet Chevelle Base 1971
Chevrolet Chevelle Base 1972
Chevrolet Chevelle Concours 1968
Chevrolet Chevelle Concours 1969
Chevrolet Chevelle Concours 1970
Chevrolet Chevelle Concours 1971
Chevrolet Chevelle Concours 1972
Chevrolet Chevelle Concours Estate 1969
Chevrolet Chevelle Concours Estate 1970
Chevrolet Chevelle Concours Estate 1971
Chevrolet Chevelle Concours Estate 1972
Chevrolet Chevelle Greenbrier 1969
Chevrolet Chevelle Greenbrier 1970
Chevrolet Chevelle Greenbrier 1971
Chevrolet Chevelle Greenbrier 1972
Chevrolet Chevelle Heavy Chevy 1971
Chevrolet Chevelle Heavy Chevy 1972
Chevrolet Chevelle Malibu 1968
Chevrolet Chevelle Malibu 1969
Chevrolet Chevelle Malibu 1970
Chevrolet Chevelle Malibu 1971
Chevrolet Chevelle Malibu 1972
Chevrolet Chevelle Nomad 1968
Chevrolet Chevelle Nomad 1969
Chevrolet Chevelle Nomad 1970
Chevrolet Chevelle Nomad 1971
Chevrolet Chevelle Nomad 1972
Chevrolet Chevelle SS 1968
Chevrolet Chevelle SS 1969
Chevrolet Chevelle SS 1970
Chevrolet Chevelle SS 1971
Chevrolet Chevelle SS 1972
Chevrolet Chevelle SS 454 1970
Chevrolet El Camino Base 1968
Chevrolet El Camino Base 1969
Chevrolet El Camino Base 1970
Chevrolet El Camino Base 1971
Chevrolet El Camino Base 1972
Chevrolet El Camino Custom 1968
Chevrolet El Camino Custom 1969
Chevrolet El Camino Custom 1970
Chevrolet El Camino Custom 1971
Chevrolet El Camino Custom 1972
Chevrolet El Camino SS 1968
Chevrolet El Camino SS 1969
Chevrolet El Camino SS 1970
Chevrolet El Camino SS 1971
Chevrolet El Camino SS 1972
Chevrolet Monte Carlo Base 1970
Chevrolet Monte Carlo Base 1971
Chevrolet Monte Carlo Base 1972
GMC Sprint Base 1971
GMC Sprint Base 1972
GMC Sprint Custom 1972
Oldsmobile 442 Base 1968
Oldsmobile 442 Base 1969
Oldsmobile 442 Base 1970
Oldsmobile 442 Base 1971
Oldsmobile Cutlass Base 1968
Oldsmobile Cutlass Base 1969
Oldsmobile Cutlass Base 1970
Oldsmobile Cutlass Base 1971
Oldsmobile Cutlass Base 1972
Oldsmobile Cutlass Cruiser 1972
Oldsmobile Cutlass S 1968
Oldsmobile Cutlass S 1971
Oldsmobile Cutlass S 1972
Oldsmobile Cutlass Supreme Base 1968
Oldsmobile Cutlass Supreme Base 1969
Oldsmobile Cutlass Supreme Base 1970
Oldsmobile Cutlass Supreme Base 1971
Oldsmobile Cutlass Supreme Base 1972
Oldsmobile F85 Base 1968
Oldsmobile F85 Base 1969
Oldsmobile F85 Base 1970
Oldsmobile F85 Base 1971
Oldsmobile F85 Base 1972
Oldsmobile Vista Cruiser Base 1968
Oldsmobile Vista Cruiser Base 1969
Oldsmobile Vista Cruiser Base 1970
Oldsmobile Vista Cruiser Base 1971
Oldsmobile Vista Cruiser Base 1972
Pontiac Grand Prix Base 1968
Pontiac Grand Prix Base 1969
Pontiac Grand Prix Base 1970
Pontiac Grand Prix Base 1971
Pontiac Grand Prix Base 1972
Pontiac GTO Base 1968
Pontiac GTO Base 1969
Pontiac GTO Base 1970
Pontiac GTO Base 1971
Pontiac GTO Base 1972
Pontiac GTO The Judge 1970
Pontiac GTO The Judge 1971
Pontiac LeMans Base 1968
Pontiac LeMans Base 1969
Pontiac LeMans Base 1970
Pontiac LeMans Base 1971
Pontiac LeMans Base 1972
Pontiac LeMans Luxury 1972
Pontiac LeMans Safari 1969
Pontiac LeMans Safari 1970
Pontiac LeMans Sport 1970
Pontiac LeMans Sport 1971
Pontiac LeMans Sport 1972
Pontiac LeMans T37 1971
Pontiac Tempest Base 1968
Pontiac Tempest Base 1969
Pontiac Tempest Base 1970
Pontiac Tempest Custom 1968
Pontiac Tempest Custom 1969
Pontiac Tempest GT 1970
Pontiac Tempest Safari 1968
Pontiac Tempest Safari 1969