Flowmaster

Flowmaster 817104 American Thunder Exhaust System

Compatible with 1967-1974 Chevrolet Camaro, Pontiac Firebird with V8 engine. 2.50 inch Stainless Steel

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$879.95
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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Flowmaster® is proud to introduce our American Thunder® dual exhaust system for 1967-1974 Chevrolet Camaro, Pontiac Firebird and 1968-1974 Chevrolet Nova's. This all stainless steel exhaust system features our exclusive design 80 Series™ Crossflow muffler, all mandrel-bent dual 2.50 in. head pipes including an H-pipe crossover for a deep smooth tone that also minimizes any back-rap on deceleration. The dual 2.50 in. stainless steel tailpipes provide a deep rich sound and optimum performance. This header-back 409S stainless system gives these classic muscle cars a moderate tone inside and out. Using the crossflow design, this exhaust places the muffler in the factory location behind the rear axle retaining full ground clearance under the car while offering all the performance benefits of a full dual exhaust system. The system includes all parts, hardware and illustrated instructions, and like all Flowmaster stainless steel street products, it includes our Limited Lifetime Warranty.

Features:

  • H-pipe Crossover for Maximum Power and Deep Tone
  • Includes Hangers and Hardware for Easy Installation
  • 80 Series Cross-flow Performance Muffler
  • Mandrel-bent Stainless Steel Tubing
  • Moderate Exterior Exhaust Tone
  • Maximum Ground Clearance
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Header-back System
Brand Flowmaster
Emission Code5
Product TypeHeader-Back Exhaust Systems
UPC700042024773
Manufacturer Part Number817104
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817104
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Convertible models require 3/8 in. of shims on the factory X-brace for clearance of the exhaust tubing.
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