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Flowmaster®
17325 American Thunder Series Cat-Back Exhaust System, Made of Aluminized Steel

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$499.95
$562.95Save: $63.00(11%)
OR
Manufacturer #17325
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Highlights

Part:
Exhaust System
Brand:
Flowmaster
Notes:
Includes 50 Series Big Block Muffler; Includes Heat Shield #51222
Material:
Made of Aluminized Steel
System Type:
Cat-Back
Quantity Sold:
Kit
Warranty:
3-year 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 (Passenger Side)
Main Piping Diameter:
3 in. Main Pipe
Product Fit:
Direct Fit
Recommended Use:
OE Upgrade
Series:
American Thunder Series
Why Buy:
Aggressive Tone Chambered Muffler

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1999-2002 Chevrolet Silverado 2500
Base
8 Cyl 6.0L
Cab & Chassis, RWD, Fits Non HD,Extended Cab/Short Bed Only
1999-2002 Chevrolet Silverado 2500
LS
8 Cyl 6.0L
Cab & Chassis, 4WD, Fits Non HD,Extended Cab/Short Bed Only
1999-2002 Chevrolet Silverado 2500
LT
8 Cyl 6.0L
Extended Cab Pickup, 4WD, Fits Non HD,Extended Cab/Short Bed Only
1999-2002 GMC Sierra 2500
SL
8 Cyl 6.0L
Cab & Chassis, 4WD, Fits Non HD,Extended Cab/Short Bed Only
1999-2002 GMC Sierra 2500
SLE
8 Cyl 6.0L
Standard Cab Pickup, 4WD, Fits Non HD,Extended Cab/Short Bed Only
Page 1 of 2 | Showing 1 - 5 of 7 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
will this fit a long bed gmc 2500 with 6.0 engine?A shopperDec 26, 2020
Best Answer:Hi, This fits 78.0 inches bed, extended cab pickup only. To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application. To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page.
Aldrin P.STAFFDec 26, 2020

Customer Reviews

American Thunder Series - Cat-Back Exhaust System - Made Of Aluminized Steel
Flow Master Exhaust System
Received as a complete package with instructions easy to follow. Was able to remove old system and install the new system within about 1 hr. Used the clamp that was sent and did not weld pipes, just incase I wanted to remove easily. The system has a nice tone outside, however, it is quite loud in the cab of the truck. Had to turn the radio a few clicks just to hear the music. Just a note, this system has not increased power or increase gas mileage.
Purchased on Oct 15, 2009