SKU: 12580292087

Flowtech Upright Headers - 11585FLT

Sale price$112.47 Regular price$124.97
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  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Flowtech Upright Headers - 11585FLTOverview: These Flowtech upright derby style headers fit the 2. 8L, 3. 1L and 3. 4L GM V6 engines with both round port or D port style exhaust ports. 1 1 2 in. and 1 5 8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow of the exhaust pulses and increase the cylinder scavenging of the exhaust to improve engine breathing. The headers are constructed from heavy duty 16 gauge 409 stainless steel tubing for increased

Overview:

These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow of the exhaust pulses and increase the cylinder scavenging of the exhaust to improve engine breathing. The headers are constructed from heavy duty 16-gauge 409 stainless steel tubing for increased strength and durability. These headers use a 10 in. long, 2.5 in. collector with 20 in. long primary tubes. The 3/8 in. thick header flange provides a leak-free seal and maximizes strength.

Features:

  • Mandrel bent tubes provide consistent tubing diameters for better exhaust pulse flow and improved performance
  • 1-1/2 in. and 1-5/8 in. primary diameters available for increased exhaust flow and improved throttle response
  • Heavy duty 16-gauge 409 Stainless Steel used for strength and durability
  • 10 in. long, 2.5 in. collector improves exhaust flow
  • 3/8 in. thick header flange for a leak-free seal and maximum strength
  • Available for both round and D-port exhaust ports
  • Header gaskets included

Application:

  • Universal

Specs:

Brand Flowtech
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Required Yes
CARB (California) Compliant No
Collector Diameter 2.50 inch
Collector Length 10 inch
Emission Code 4
Engine Chevrolet V6
Flange Thickness 3/8 Inch
Header Finish Natural
Header Style Upright
Inlet Port Shape Round
Installed Height 27 inch
Primary Tube Dia. 1-1/2 inch
Primary Tube Length 20 inch
Product Type Headers
Tube Material 409 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:
  1. 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
SKU: 12580292087

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Wyndi
Alexandria, US
★★★★★ 5
Great stuff!
It felt like it strengthened my immune system! I will always take this for my good health.
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Reviewed in the United States on May 27, 2026
M
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MammaMaeve
Chelsea, US
★★★★★ 5
Natural cleansing for lymphatic system and better digestion.
I bought tbis to help to cleanse my lymph system and to 8mprove digestion of proteins. The digrstion help was almost immediaye! Within a wee i could tell a fiffetdnce in less ibdigestion, less stomach and colon pain. A Betyer overall health and " lighter" gut feeling. I know this pineapple extract take a while to work in concert with other supplements to clear out old hard protiens and seed oil residue from the delicate lymph nodes. Clearing a lifetime of eating the wrong foods ( believing they were safe..ugh,) will take while.
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Reviewed in the United States on November 14, 2025
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Micheal Long
Belleville, US
★★★★★ 4
Bromelain 500mg with Quercetin & MCT Oil, 240 Enteric Coated Softgels |
Burns the inside of mouth when taking it and terrible customer service!!!! They say one thing and do the opposite. DO NOT RECOMMEND. They finally refunded Micheal
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Reviewed in the United States on January 14, 2026
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F500Exec
Carnegie, US
★★★★★ 5
Great Stuff
Definitely helps with preventing and reducing bruises.
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Reviewed in the United States on April 18, 2026
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mike evans
Lexington, US
★★★★★ 5
Latex allergy stopped me from taking bromelain
I was excited to find a natural solution to inflammation and sinus issues. However, after taking this for less than a week, I had a nosebleed that wouldn't stop. After a deep dive on Google, I found out that if you are allergic to latex, you shouldn't take bromelain. Latex Cross-Reactivity: Bromelain is derived from pineapple. People with a latex allergy are at higher risk of an allergic reaction to bromelain. This allergy can manifest as sneezing, itchy throat, or inflammation in the sinuses, which can trigger nosebleeds. I was taking this to get rid of the inflammation in my sinuses, not add to it. I also had tingling in my fingers, which a deep dive on Google said could happen if I am sensitive to quercetin. Quercetin Side Effects: While generally safe, high-dose or sensitive use of quercetin can cause "tingling in the extremities" (numbness/tingling in hands/feet). Thus is neither a high dose of eother of these, nor was it used long-term, so I guess I am sensitive to them both. Beware if you are sensitive to medications and/or have a latex allergy. I can't say if these pills made a positive impact on me, because I only found negative effects, but that is due to my body being so quirky.
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Reviewed in the United States on March 29, 2026

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