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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
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For Your Every Summer RSVP, with Code: SUMMER15
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
4.9 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Perfect suit vest for any formal occasion
Size: 10-11, Color: Black, Size: 10-11, Color: Black
I purchased this for my son’s music band performance. I can say that this product is value for money. This vest offers stylish, well- tailored, slim fit look. The quality is fantastic and adjustable back strap helps to give perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
★★★★★ 5
Well made and comfy.
Size: 10-11, Color: Black
Very pretty. Well made and comfy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
★★★★★ 5
Great value
Size: 10-11, Color: Black
We bought 2 of these because our suit rentals for our wedding didn’t come with full vests for the children (Men’s Wearhouse gives you bibs for kids), and we live in Texas, so we didn’t want the boys to have to wear a full jacket during the reception in the heat.
These fit really well and matched the suits that we rented.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
★★★★★ 4
Fancy vest
Size: 12, Color: Black
It’s a very nice jacket fits awesome great material and stitching and looks fabulous
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Get it!
Size: 10-11, Color: Blue Plaid
Another must buy on my list! Color, size and length were all good. I was a bit surprised as to the thickness of the vest, not heavy, but well made. Definitely value for money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
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