2019-2026
2014-2018
2007-2013
1999-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
FREE 1 to 3-Day Delivery on Orders $149+ Details
Find Mufflers for your Silverado 1500
Flowmaster 40 Series Dual In/Center Oval Muffler; 2.50-Inch Inlet/3-Inch Outlet (Universal; Some Adaptation May Be Required)
Item S211121
Our Price
$101.95 each
Military, Medical & First Responders
$5.10 Available in AT Cash Rewards.
Confirm Eligibility
Confirm Eligibility
Choose options to add to cart.
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Shop Owners Save More!
Sign up for our dealer program
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- _x000D_
- 40 Series - 2.50 Dual In / 3.00 Center Out - Aggressive Sound _x000D_
- Legal For Sale Or Use On Emissions Controlled Vehicles, Uncontrolled Vehicles, And Racing Use Only Vehicles _x000D_
- Does Not Affect Vehicle Emissions And Is Not Covered By Emissions Regulations _x000D_
- Fits Universal; Some Adaptation May Be Required _x000D_
| Brand | Flowmaster |
| Muffler Inlet Size | 2.50 Inch |
| Muffler Installation Type | Clamp-On Muffler |
| Muffler Type | Chambered Muffler |
Description
Performance Muffler. The Flowmaster 40 Series Dual In/Center Oval Muffler with 2.50-inch inlet and 3-inch outlet is designed to deliver an aggressive sound while maintaining optimal exhaust flow. This muffler enhances engine performance and provides a distinct, powerful tone suited for both street and racing applications.
_x000D_Construction and Appearance. Made from durable materials, this muffler features a chambered design to maximize sound control and exhaust efficiency. Its robust finish resists corrosion and wear, ensuring long-lasting functionality and appearance.
_x000D_Installation. Installation is straightforward and generally requires only basic hand tools. No drilling is typically necessary, making it a convenient upgrade for most exhaust systems.
_x000D_Application. Fits universal; some adaptation may be required.
Flowmaster 425403
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
5.0
Customer Reviews (1)
Questions & Answers
No questions about this product yet.
Ask the First Question
