2020-2026
2015-2019
2007-2014
2001-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Flowtech 1-7/8-Inch Shorty Headers; Black Painted (07-13 6.0L Silverado 3500 HD)Find parts that fit my vehicle
Item SHS21418
Our Price
$511.95 pair
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$25.60 Available in AT Cash Rewards.
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Mandrel-bent tubes ensure consistent tubing diameters for smooth flow and increased exhaust velocity
- Heavy-duty 16-gauge tubing enhances strength and durability
- Smooth transition 1-7/8” diameter primary tubes increase exhaust flow, improving performance and throttle response
- OE-style 2-1/2” collector connects to factory exhaust head pipe with no cutting or welding required
- TIG-welded, machined 3/8” header flange provides a leak-free seal and maximum strength
- Includes premium aluminum header gaskets
- Coated in high heat-resistant black paint for durability and corrosion resistance
- Headers are a recommended upgrade when used with cold air intake, cat-back exhaust system, or tuner
- Fits 2007-2013 6.0L Silverado 3500 HD
| Brand | Flowtech |
| Headers Type | Shorty Headers |
| Header Primary Size | 1.76-2.00 Inch |
| Header Collector Size | 2.50 Inch |
| Header Finish | Painted |
Description
Performance Exhaust Upgrade. The Flowtech 1-7/8-Inch Shorty Headers with black paint improve exhaust flow by replacing restrictive factory manifolds with smooth mandrel-bent tubing. Designed to increase horsepower and throttle response, these headers work well on engines equipped with additional performance modifications such as cold air intakes and cat-back exhausts.
Construction and Appearance. Manufactured from heavy-duty 16-gauge mild steel, these headers feature TIG-welded machined flanges for a secure, leak-free seal. The high-heat resistant black paint finish provides durability and resistance to corrosion, maintaining a sleek satin appearance under harsh conditions.
Installation. Installation is straightforward and requires no cutting or welding, thanks to the OE-style 2-1/2” collector flange that connects directly to the factory exhaust system. Only basic hand tools are needed, making this an accessible upgrade for most experienced enthusiasts.
Application. Specifically designed to fit the 2007 through 2013 6.0L Silverado 3500 HD, these shorty headers provide a direct replacement that connects to the factory exhaust system without modifications for this vehicle and engine combination.
Flowtech 11143FLT
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Shorty Headers
4.3
Reviews of Flowtech Exhaust Products (42)
Questions & Answers
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Will It Fit My Silverado 3500
- 6.0L V8 - 07, 08, 09, 10, 11, 12, 13
