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Flowmaster®
817654 American Thunder Series Header-Back Exhaust System, Made of Stainless Steel

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$855.95
$952.00Save: $96.05(10%)
Manufacturer #817654
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Part:
Exhaust System
Brand:
Flowmaster
Notes:
Includes Super 44 Series Muffler
Material:
Made of Stainless Steel
Series:
American Thunder Series
System Type:
Header-Back
Quantity Sold:
Kit
Warranty:
Lifetime Flowmaster Limited Warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location:
Exit: After Rear Tire (Split Rear or Split Side)
Main Piping Diameter:
2.5 in. Main Pipe
Product Fit:
Direct Fit
Recommended Use:
OE Upgrade
Why Buy:
Aggressive Tone Chambered Muffler

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1967 Chevrolet C10 Pickup
Base
8 Cyl 4.6L
RWD, Big Block Chevy Swap,LS Swap,Small Block Chevy Swap,Fits Both Short And Long Wheelbase Trucks
1967 GMC C15/C1500 Pickup
Base
8 Cyl 4.6L
RWD, Big Block Chevy Swap,LS Swap,Small Block Chevy Swap,Fits Both Short And Long Wheelbase Trucks
1967-1968 GMC C15/C1500 Pickup
Base
6 Cyl 5.7L
RWD, Big Block Chevy Swap,LS Swap,Small Block Chevy Swap,Fits Both Short And Long Wheelbase Trucks
1967-1968 GMC C15/C1500 Pickup
Base
8 Cyl 5.3L
RWD, Big Block Chevy Swap,LS Swap,Small Block Chevy Swap,Fits Both Short And Long Wheelbase Trucks
1967-1969 Chevrolet C10 Pickup
Base
8 Cyl 5.3L
RWD, Big Block Chevy Swap,LS Swap,Small Block Chevy Swap,Fits Both Short And Long Wheelbase Trucks
Page 1 of 5 | Showing 1 - 5 of 22 results

Product Information

FLOWMASTER AMERICAN THUNDER AGGRESSIVE TONE CHAMBERED MUFFLER EXHAUST SYSTEMS

Flowmaster’s American Thunder aggressive tone chambered muffler exhaust systems include mandrel-bent steel tubing and a chambered muffler that’s fine-tuned to deliver improved torque, horsepower and gas mileage, plus the moderately aggressive rumble you crave for your street machine. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of performance exhaust systems, respected for their design, innovation and engineering.

  • MADE IN USA
  • Offered in aluminized or stainless steel
  • Chambered muffler fine-tunes exhaust tone to moderately aggressive rumble
  • Mandrel-bent tubing allows for continuous airflow
  • Quick and easy installation
  • Direct fit by vehicle year, make and model
  • Proven to improve torque, throttle response, horsepower and fuel economy by rigorous dyno testing
Need help?Call our product expert1-866-529-0412
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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
I have a rear mounted gas tank can I get pics of how this runs on truck it needs to be at frame rails at taill end I put in a 31gal tank?Craig W.Mar 23, 2024
Best Answer:Hi Craig, thank you for reaching out! We do not have that information available. Kindly call the manufacturer at 1-866-464-6553 for assistance on that matter. Have a great weekend!
Andrew B.STAFFMar 23, 2024