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Description
Flowtech Shorty Headers - Black Painted - 11142FLTOverview: 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 3 4 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, 1-3/4” 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 Sierra 2500 HD
- 2003-2013 Chevrolet Silverado 1500
- 2003-2013 Chevrolet Silverado 2500 HD
- 2003-2013 GMC Sierra 1500
- 2003-2013 GMC Yukon
- 2003-2013 GMC Yukon XL 2500
- 2003-2009 GMC Yukon XL 1500
- 2007-2013 Chevrolet Silverado 3500 HD
- 2007-2013 GMC Sierra 3500 HD
- 2008-2013 Chevrolet Tahoe
- 2003-2006 GMC Sierra 3500
- 2003-2006 Chevrolet Silverado 1500 HD
- 2003-2006 Chevrolet Silverado 3500
- 2003-2006 GMC Sierra 1500 HD
- 2003-2004 Chevrolet Silverado 2500
- 2003-2004 GMC Sierra 2500
- 2007 Chevrolet Silverado 1500 Classic
- 2007 Chevrolet Silverado 2500 HD Classic
- 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
Specs:
| Brand | Flowtech |
|---|---|
| Collector Diameter | 2.50 inch |
| Emission Code | 4 |
| Header Finish | Black Paint |
| Header Style | Shorty |
| Primary Tube Dia. | 1-3/4 inch |
| Product Type | Headers |
| Tube Material | 304 Stainless 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
4.5 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Calzado elegante para oficina de excelente calidad
Producto de excelente calidad. La entrega fue rápida y el empaque llegó en perfectas condiciones. Cumple completamente con lo descrito en la publicación.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 3
Not A Walking Shoe
Size: 9.5, Color: Black/British Tan
In the photo online this shoe looks like it will be very comfortable. Kind of a classy Coach's Shoe. Also in the photo the heel portion of the sole looks thick and supportive. I bought them thinking they would be my go-to travel shoe. Wrong.
This is not a comfortable shoe for extended wear. Short durations, OK. The main problem is that the sole is very thin and flexible in all directions. There is no, as in zero arch support, plus that thin heel means that you tend to rock back on your heels and it feels like you're pounding the pavement.
I've worn once and I'm very disappointed. They look great, definitely high quality materials, but using them for the intended purpose of travel.... fah get about it.
If you're looking for a good looking shoe to wear around the gym and you don't intend to use the treadmill, or elliptical, then this is the shoe you want.
They would definitely be returned if I hadn't already worn them outside.
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Reviewed in the United States on August 11, 2023
★★★★★ 5
Great shoe!
Size: 14 Wide, Color: Woodbury Handstain
Great shoe- better leather cover than last pair that scuffed if you blinked at them.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Very nice, but sizing is inconsistent
Size: 10 Wide, Color: Ivory/White/British Tan
All of these Cole Haan shoes are extremely well made and I like the styling. On the other hand, the sizing is very inconsistent and you may end up having to do a lot of returns trying to find the right size. Then if you get a different color of it, you may find the sizing different yet again.
If you find your right zie, they are really nice shoes at a very reasonable price for the quality.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
I love this brand. These shoes look and fit great!
Size: 13 Wide, Color: Black/White/Black
I love wearing Cole Haan shoes. This is the second pair I’ve owned and the style just gets me. I’ve worn these to work at a great professional job every day, not just casual Friday. I wear these when I head out shopping or to dinner. They are functional, comfortable, built for regular and bigger wider feet and comfortable. I am 6 feet tall and my feet have changed size over the years to me needing a wider shoe to relieve pressure on my toes and front wide porting of my foot. So the 13W feels great and still walks the same as a regular 14 but more comfort for me. They look amazing and qualify in some offices as dress shoes (depending on company rules they will justify a sneaker as a shoe with the tan colored “gum” sole as a sneaker) so check company policy. The black sole on this makes it look more dressy. I am switching out the laces to match my previous Cole Haan because I think the white shoelaces look better. As an adult, aside from my Kenneth Cole boots Reaction boots and Doc Marten’s these are the only shoes I will pay 3 digits for. This looks like skater shoes but with a more mature look.
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Reviewed in the United States on December 19, 2025
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