2011-2019 Chevrolet Silverado 2500 HD Cat-back Exhaust System Flowmaster American Thunder 817541
2011-2019 Chevrolet Silverado 2500 HD Cat-back Exhaust System Flowmaster American Thunder 817541
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Overview
The new Flowmaster American Thunder® Cat-back exhaust system for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L, is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD™ muffler and large dual 3.00-inch stainless steel mandrel bent tailpipes that can be configured to exit either dual out the sides, or dual straight out the back. The system is finished off with beautifully polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Notes: Fits Crew Cab with 6.5' bed length. 153.7" wheelbase only.
Features
- Uses the Factory Hanger Locations for Easy Installation
- 50 Series HD Muffler with Delta Flow Technology
- Multiple Tailpipe Exits Provided in Kit
- Large 3.00-inch Dual Tailpipes
- Stainless Steel Construction
- Lifetime Limited Warranty
- Flowmaster Quality
Application
- Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500HD/3500HD Crew cab/standard 6.5-foot bed models with 6.0L gas engine. 153.7" wheelbase.
Specs
2WD/4WD | RWD/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 | Dual Out Rear / Dual Out Side |
Heat Shield | No |
Inlet Diameter (in) | 3.5 |
Material | 409 Stainless Steel |
Muffler Part Number | Kit Only |
Muffler Quantity | 1 |
Muffler Series | 50 Series HD |
Outlet Diameter (in) | 3 |
Product Type | Exhaust System |
Single Dual | Dual |
Sound Level | Moderate/Aggressive |
System Type | Cat-back |
Tip Diameter (in) | 4 |
Tip Length (in) | 13 |
Tip Quantity | 2 |
Tubing Diameter (in) | 4 |
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.