2001-2004 Chevrolet Silverado 2500 HD Cat-back Exhaust System Flowmaster American Thunder 817328
2001-2004 Chevrolet Silverado 2500 HD Cat-back Exhaust System Flowmaster American Thunder 817328
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Overview
Finally, an exhaust system as durable and strong as the trucks it's designed to fit. Flowmaster® proudly introduces the American Thunder® cat-back exhaust system for 2001-2004 Chevy and GMC 2500HD/3500HD extended-cab and crew-cab trucks equipped with the 6.0 and 8.1L engines. Featuring dual 3.00-inch inlets and a single 3.5-inch mandrel-bent tailpipe thats finished off with a large 4.00-inch polished T304 stainless steel tip. This stainless steel system features a 50 Series Big Block® muffler gives your truck a deep moderately aggressive tone inside and out. Detailed step-by-step instructions and all necessary hardware are included to allow an easy, at-home installation. The system is covered by our Lifetime Limited Warranty.
Features
- Includes Hangers and Hardware for an Easy Installation
- Moderately Aggressive Exterior Exhaust Tone
- Mandrel-bent 16 Gauge Stainless Steel Tubing
- Connects After Factory Catalytic Converter
- Uses the Factory Hanger Locations
- Lifetime Limited Warranty
Application
- Fits 2001-2004 Chevrolet Silverado and GMC Sierra 2500, 3500 3/4 Ton or 1 Ton HD chassis with 6.0L or 8.1L engine, fits Extended Cab and Crew Cab models.
Specs
2WD/4WD | 2WD/4WD |
Brand | Flowmaster |
California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
California Proposition 65 Chemical Name | Nickel (Metallic) |
California Proposition 65 Required | Yes |
Emission Code | 5 |
Exhaust Series | American Thunder |
Exit Position | Single Side Exit |
Heat Shield | No |
Inlet Diameter (in) | 3 |
Inlet Position | Dual |
Material | 409 Stainless Steel |
Muffler Part Number | Kit Only |
Muffler Quantity | 1 |
Muffler Series | 50 Series Big Block |
Outlet Diameter (in) | 3.5 |
Product Type | Exhaust System |
Single Dual | Single |
Sound Level | Aggressive |
System Type | Cat-back |
Tip Diameter (in) | 4 |
Tip Quantity | 1 |
Tubing Diameter (in) | 3.5 |
Warning | California Proposition 65 |





Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.