Flowmaster American Thunder Header Back Exhaust System - 17654


  • Flowmaster Exhaust | Part Number: FLW17654
  • Exit Location/Type:Dual Rear
  • Material:Aluminized Steel
  • System Type:Header-Back Pipe Kit
  • Tip Included:Tip Not Included
  • Tubing Size:2.5 Inches
  • Fitment:Direct Fit


The classic sound of a Flowmaster chambered exhaust, our American Thunder Series features mufflers tuned to deliver more power, torque, throttle response and mileage. Best of all, these exhaust systems take sedate vehicles and deliver that great performance tone especially designed for muscle car and truck fans. American Thunder is the most authentic Flowmaster muffler sound

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For over 30 years, Flowmaster has been producing exhaust products to combat noise issues that first cropped up on race tracks in California. The question was how to reduce sound without compromising performance? Advanced engineering and ample testing set Flowmaster's product line apart from competitors and a few of their more noteworthy parts include chambered mufflers, laminar flow designs and high flow catalytic converters. We carry Jeep exhaust pipes, exhaust flanges and complete exhaust systems among other Flowmaster products. The company's patented technologies, innovative designs and focus on performance keep Flowmaster at the forefront of aftermarket exhaust manufacturers. Shop Flowmaster Exhaust Now

This Product Fits the Following:

  • 1972 Chevrolet C10 Pickup Base  
  • 1972 GMC C15/C1500 Pickup Base  
  • 1971 Chevrolet C10 Pickup Base  
  • 1971 GMC C15/C1500 Pickup Base  
  • 1970 Chevrolet C10 Pickup Base  
  • 1970 GMC C15/C1500 Pickup Base  
  • 1969 Chevrolet C10 Pickup Base  
  • 1969 GMC C15/C1500 Pickup Base  
  • 1968 Chevrolet C10 Pickup Base  
  • 1968 GMC C15/C1500 Pickup Base  
  • 1967 Chevrolet C10 Pickup Base  
  • 1967 GMC C15/C1500 Pickup Base