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Description
Flowtech 11143FLT - Shorty Headers - Black Painted - 2WD/4WD equipped with 6.0L LS V8 EngineOverview: Flowtech Headers are the perfect combination of quality and value. This shorty style header is popular for "LS Engine" swap projects. They fit the popular 03 13 Chevy Silverado Tahoe Yukon V 8 6. 0L, 2WD 4WD. Features: Mandrel bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity Heavy duty 16 gauge tubing for increased strength and durability Smooth transition, 1 7 8 diameter primary tubes are used
Overview:
Flowtech Headers are the perfect combination of quality and value. This shorty style header is popular for "LS-Engine" swap projects. They fit the popular 03-13 Chevy Silverado/Tahoe/Yukon V-8 6.0L, 2WD/4WD.
Features:
- Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity
- Heavy duty 16-gauge tubing for increased strength and durability
- Smooth transition, 1-7/8” diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
- OE style 2-1/2” collector connects to factory exhaust head pipe with no cutting or welding
- TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength
- Premium aluminum header gaskets included
- Coated in high heat resistant black paint
- Headers are a must upgrade if you are using a cold air intake, cat-back exhaust system or tuner
Application:
- 2003-2013 GMC Yukon XL 2500
- 2003-2013 Chevrolet Silverado 2500 HD
- 2003-2013 GMC Sierra 2500 HD
- 2007-2013 GMC Sierra 3500 HD
- 2007-2013 Chevrolet Silverado 3500 HD
- 2003-2009 Chevrolet Silverado 1500
- 2003-2009 GMC Sierra 1500
- 2003-2009 GMC Yukon XL 1500
- 2008-2013 Chevrolet Tahoe
- 2003-2006 Chevrolet Silverado 1500 HD
- 2003-2006 Chevrolet Silverado 3500
- 2003-2006 GMC Sierra 1500 HD
- 2003-2006 GMC Sierra 3500
- 2003-2004 Chevrolet Silverado 2500
- 2003-2004 GMC Sierra 2500
- 2007 Chevrolet Silverado 3500 Classic
- 2007 GMC Sierra 1500 Classic
- 2007 GMC Sierra 2500 HD Classic
- 2007 GMC Sierra 3500 Classic
- 2007 Chevrolet Silverado 1500 HD Classic
- 2007 GMC Sierra 1500 HD Classic
- 2007 Chevrolet Silverado 1500 Classic
- 2007 Chevrolet Silverado 2500 HD Classic
Specs:
| Brand | Flowtech |
|---|---|
| Collector Diameter | 2.50 inch |
| Emission Code | 4 |
| Header Finish | Black Paint |
| Header Style | Shorty |
| Primary Tube Dia. | 1-7/8 inch |
| Product Type | Headers |
| Tube Material | Mild Steel |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Great replacement parts!
Perfect fit for my 2003 Mercury Salt Water 150 2 stroke engine. Everything I needed was in the box.” “Good quality parts and saved me a lot compared to OEM.
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Reviewed in the United States on July 6, 2025
★★★★★ 5
Great brand and value for the price
high quality parts, look just like OEM, packaged well, I like that a parts list is included so that contents can be verified.
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Reviewed in the United States on May 22, 2025
★★★★★ 5
Great connectors
Size: 5 pairs
Just finished an overhaul on the stereo system. A couple decks needed new belts and the wife wanted a new cabinet for everything so just take it all apart and refresh. I ordered these plugs to make the backside wiring a bit neater . They are very well made and easy to install if you mess up the polarity just swap the arrel covers, easy peasy. Great quality and easy assembly. Did it improve the sound? Can't say that I noticed that but it is certainly as good and so much easier to connect speaker outputs. I would certainly buy again.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
High Quality Banana Plugs
Size: 12 Pairs
Banana clips are high quality, I used 12 awg wires and had no issues. It secures into the plug with 2 small screws, you will need a flat terminal screw driver to install them. The quality was high and made a good connection. If I had to make one complaint it would be that I would tighten the gray piece to the plug and it always kept spinning, otherwise, excellent product.
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Good quality connectors
Size: 6 Pairs
Good quality connectors, holds wire well and stays in place. I’ll buy again
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Reviewed in the United States on March 1, 2026