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Fitment

YearMakeModelSub Model
1968ChevroletChevelle300
1968-1972PontiacLeMans
1968-1972ChevroletChevelleMalibu
1968-1972ChevroletEl CaminoCustom
1968-1972BuickSkylarkCustom
1968-1969PontiacTempestCustom
1968-1969BuickSportwagonCustom
1968-1972ChevroletChevelleNomad
1968-1972ChevroletChevelleConcours
1968-1969ChevroletChevelle300 Deluxe
1968OldsmobileCutlassS
1968-1969PontiacTempestSafari
1968-1972OldsmobileCutlass
1968-1972OldsmobileCutlass Supreme
1968-1972BuickSportwagon
1968-1969BuickGS 350
1968-1972PontiacGTO
1968-1971Oldsmobile442
1968ChevroletChevelle
1968-1972PontiacGrand Prix
1968-1972OldsmobileVista Cruiser
1968-1972ChevroletChevelleSS
1968-1970PontiacTempest
1968-1969BuickSpecial
1968-1969BuickGS 400
1968-1972ChevroletEl CaminoSS
1968-1972OldsmobileF85
1968-1972ChevroletEl Camino
1968-1972BuickSkylark
1969-1972ChevroletChevelleGreenbrier
1969-1972ChevroletChevelleConcours Estate
1969-1970PontiacLeMansSafari
1970PontiacTempestGT
1970-1972PontiacLeMansSport
1970-1971PontiacGTOThe Judge
1970BuickGS 455GSX
1970-1972BuickGS
1970-1972BuickGS 455
1970-1972ChevroletMonte Carlo
1970-1972ChevroletChevelle
1970BuickSkylark350
1971-1972OldsmobileCutlassS
1971PontiacLeMansT37
1971-1972GMCSprint
1972PontiacLeMansLuxury
1972GMCSprintCustom
1972OldsmobileCutlassCruiser
1972BuickSkylark350

Quick Specs

  • Country of Origin: USA
  • Sold As: Kit
  • Availability: Available
  • Exhaust Type: Crossmember Back
  • Exit Style: Dual Out Rear
  • Mount Style: Clamp-On
  • Shape: Oval
  • Part Number : 817409

Important Notes

ATTENTION STATE OF CALIFORNIA CONSUMERS

WARNING: Cancer and reproductive harm –

American Thunder Crossmember-Back Exhaust System Fits 1968-1972 GM A-Bodies With V8 Engine 2.50-Inch Stainless Steel Pipes Aggressive Sound Flowmaster

Fits 1968 Chevrolet Chevelle 300 1968-1972 Pontiac LeMans Malibu El Camino Custom Buick Skylark 1968-1969 Tempest Sportwagon Nomad Concours Deluxe Oldsmobile Cutlass S Safari Supreme GS 350 GTO 1968-1971 442 Grand Prix Vista Cruiser SS 1968-1970 Special 400 F85 1969-1972 Greenbrier Estate 1969-1970 1970 GT 1970-1972 Sport 1970-1971 The Judge 455 GSX Monte Carlo 1971-1972 1971 T37 GMC Sprint 1972 Luxury
4.9257075471698 848 5
98.514150943396%
4.9/5 out of 848 Company Reviews. Rating:
American Thunder Crossmember-Back Exhaust System Fits 1968-1972 GM A-Bodies With V8 Engine 2.50-Inch Stainless Steel Pipes Aggressive Sound Flowmaster
1049.95In stock
Fits 1968 Chevrolet Chevelle 300 1968-1972 Pontiac LeMans Malibu El Camino Custom Buick Skylark 1968-1969 Tempest Sportwagon Nomad Concours Deluxe Oldsmobile Cutlass S Safari Supreme GS 350 GTO 1968-1971 442 Grand Prix Vista Cruiser SS 1968-1970 Special 400 F85 1969-1972 Greenbrier Estate 1969-1970 1970 GT 1970-1972 Sport 1970-1971 The Judge 455 GSX Monte Carlo 1971-1972 1971 T37 GMC Sprint 1972 Luxury
  • Brand : Flowmaster
  • SKU : 817409-BDXN
  • Part Number : 817409
$1,049.95

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Product Details

This American Thunder exhaust system comes as a complete true dual Crossmember-Back exhaust for your 1968-1972 GM A-body with a V8 engine. These dual exhaust systems feature 2.50-inch mandrel-bent stainless steel tubing for maximum performance, includes a built-in H-pipe/balance tube flowing into a pair of large case Super 40 mufflers that deliver an aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard.

The 2.50-inch tailpipes exit at a slight angle down under the rear bumper for a strong muscular look. The system includes all hangers and necessary hardware for installation. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage and is covered by our Lifetime Limited Warranty.

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