My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Flowmaster 17325 American Thunder Cat-Back Exhaust System

(1999-2002 Chevrolet Silverado 2500; 1999-2002 GMC Sierra 2500)

Manufacturer

Picture for manufacturer Flowmaster

Part Number

17325
4 reviews
Sale Price

$584.95

Estimated ship date Sunday, November 22

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster American Thunder Cat-Back Exhaust System delivers an aggressive exterior exhaust tone with proven performance gains. This complete bolt-on system is dyno-tuned to maximize horsepower and torque while providing the distinctive Flowmaster sound that enthusiasts demand.

Key Features:

  • Mandrel-bent 16-gauge aluminized steel tubing for maximum exhaust flow and durability
  • Aggressive exterior exhaust tone for enhanced sound without interior drone
  • Dyno-tuned design for optimized performance gains
  • Utilizes factory hanger locations for direct fit installation
  • Includes aluminum heat shield for rapid heat dissipation and protection
  • Stainless steel heat shield clamps resist corrosion
  • Complete hardware and hangers included for straightforward installation

Engineered for easy bolt-on installation, this American Thunder system requires no cutting or welding. The mandrel-bent construction ensures smooth exhaust flow and consistent tubing diameter throughout, while the aluminized steel material provides excellent corrosion resistance for long-lasting performance.

Products specifications

Fits

1999-2002 Chevrolet Silverado 2500; 1999-2002 GMC Sierra 2500

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Catalytic Converter Quantity

0

Category

Exhaust

Clamps Included

Yes

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled Edge Angle Cut

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

1

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Single Out Side

Finish

Aluminized

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

Yes

Inlet Diameter

2.75

Inlet Type

Clamp-On

Mounting Bracket Included

No

Muffler (Left) Body Width

12.00

Muffler (Left) Type

Chambered

Muffler (Right) Type

Chambered

Muffler Body Material

Aluminized Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Inlet Location

Dual

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Quantity

1

muffler part number

Kit Only

Muffler Quantity

1

Muffler Series

50 Series Big Block

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

Aluminized Steel

Product Type

Exhaust System

Sound Level

Aggressive

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

1

Tail Pipe Quantity

Single

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Fast service and shipping, Plus the lowest price for the high performance k&n air filter<br>I wanted.

very fast processing received product within a few days. fair prices. will do business with again.

I liked the website and it's layout. Very easy to find merchandise. When I called i liked the fact that I was put through to a person right away.

Completely amazed by this seller. I recieved the rack in just 2 days and the price was unbeatable. I'm just stoked to have finally found a bike rack worth having!!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy