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.
Does Not Include Header Reducers or Downpipes for Factory Manifolds
H-pipe Crossover for Maximum Power and Deep Tone
Super 40 Series Mufflers for Deep Powerful Sound
Includes Hangers and Hardware for Installation
Mandrel-bent 16-gauge Stainless Steel Tubing
Crossmember-Back True Dual Exhaust System
Aggressive Exterior Exhaust Tone
Lifetime Limited Warranty
Vehicle Fitment
1968-1969 Buick GS 350
1968-1969 Buick GS 400
1968-1971 Oldsmobile 442
1968-1972 Buick Skylark
1968-1972 Chevrolet Chevelle
1968-1972 Oldsmobile Cutlass
1969-1972 Pontiac Grand Prix
1970-1972 Buick GS
1970-1972 Buick GS 455
Please verify exact fitment for your trim and engine before ordering.
Manufacturer Part Number: 817409
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.
