SKU: 23684265410

Long Tube Header for 1970-1973 Ford Mustang 351C-4V Black Paint 12118FLT Flowtech

Sale price$134.97 Regular price$149.97
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Long Tube Header for 1970-1973 Ford Mustang 351C-4V Black Paint 12118FLT FlowtechOverview: Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5 16" flanges with sealing rings for a leak free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance. Features: Improved Exhaust Scavenging for Increased

Overview:

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.

Features:

  • Improved Exhaust Scavenging for Increased Performance
  • Leak Test For Max Performance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
  • Constructed of .049 cold roll flash mild steel tubing
  • Precision engineered for fit, performance and economy
  • Will not fit with manual transmissions
  • Will not fit C6 transmissions

Fitment Notes:

  • Will NOT fit with manual transmissions.
  • Will NOT fit C6 transmissions (but fits other Automatic Transmissions).
  • 351C-4V engines only!
  • WILL fit models with AC, Power Brakes, and Power Steering.
  • Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage.
  • The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.

Applications:

Year Make Model Engine Fitment Notes
1970 Ford Fairlane 5.8L 351C-4V Please See Above!
1972-1974 Ford Gran Torino 5.8L 351C-4V Please See Above!
1970-1973 Ford Mustang 5.8L 351C-4V Please See Above!
1970-1973 Ford Ranchero 5.8L 351C-4V Please See Above!
1970-1974 Ford Torino 5.8L 351C-4V Please See Above!
1970-1974 Mercury Cougar 5.8L 351C-4V Please See Above!
1970-1971 Mercury Cyclone 5.8L 351C-4V Please See Above!
1970-1974 Mercury Montego 5.8L 351C-4V Please See Above!

Specs:

Brand Flowtech
Bolt Size 3/8-16 x 3/4
Collector Diameter 3.00 inch
Engine 351C-4V
Header Finish Black Paint
Header Style Long Tube
Primary Tube Diameter 1-3/4 inch
Product Type Headers
Tube Material Mild Steel
Part Number 12118FLT
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: 23684265410

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Ct
Los Angeles, US
★★★★★ 4
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Size: 8, Color: Black/White, Size: 8, Color: Black/White
Seem good. Comfortable. True size
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Reviewed in the United States on March 21, 2026
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Turtlespit
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★★★★★ 2
Poor sole design could result in injury to heel.
Size: 11, Color: Grill/Mint Wave
These would be so much better if the sole did not expose the heel to possible punctures. There is an actual cutout of the sole where only the spongy part of the shoe is exposed to the heel. Anything sharp will go right through.
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Reviewed in the United States on November 25, 2025
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jlang
Battle Creek, US
★★★★★ 5
I'm in love, I am complete.
Oh my gosh! I can't stop looking at this beautiful Tissot masterpeace. I have the black on black face with the tan strap (the 45mm Supersport Stainless Steel Sport Watch), and I am a better person because of this watch. They say a watch will never complete you... they were wrong. I am happy. I am truly happy. Thank you Tissot! The chrono does split-times! And, the face is "sapphire crystal". C'mon y'all! That level of quality at this price point is an insane good deal! I think I paid around $400 for my Supersport Stainless (the "SS"). I would have paid $900!. It's amazing. This SS is my rugged go-around watch. Yes, a man of my caliber does have have high-end watches $10,000+ that I save for when I want to impress the world. But, for day-to-day I wear my SS Tissot and I impress myself.
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Reviewed in the United States on June 24, 2021
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PMD
Natrona Heights, US
★★★★★ 5
Looks, feel, quality, function and value - this watch has it all.
This is a well-made time piece. It presents extremely well, with an excellent look, feel and function. An outstanding watch and and a genuine value.
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Reviewed in the United States on September 21, 2023
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Adam Hartzog
Charlottesville, US
★★★★★ 5
Very happy with this purchase
Exactly what I ordered. On time, all the time. Looks great. Very durable. Quality band.
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Reviewed in the United States on September 18, 2021

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