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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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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:
- 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
4.3 ★★★★★
Based on 1005 reviews
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Product Reviews
★★★★★ 5
Very nice very very nice
Style: CA10467
Honestly I didn’t use it yet but just by inspection it. Looks very good. On thing I have to say is. Amazon did it again. Perfect. The outside box was a little dented and slightly crushed on the corner but the inside box that holds the air filter was perfect. Me being a delivery driver at one time am amazed that the packages always come delivered in perfect condition. I know how easy they can get damaged. Great job Amazon and the drivers and the whse and package dept. great job
Update, I just put the air filter in my Honda and it feels faster and more responsive. I will be buying this air filter again. I bought a spearhead air filter for my tundra , and it’s a good filter but I think I am going to switch to a kax filter for two reasons
First I said I put it in my Honda and it feels faster and responds quicker.
Second. I know it’s not a good reason but I like the color.
But I really feel the difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2025
★★★★★ 5
10/10 best product
Style: CA10467
Easy install if yk what your doing been working fine it’s a good value for your money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2024
★★★★★ 5
You are going to love it
Style: CA10467
It fit, (Honda accord 2008) I love the design and is easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2024
★★★★★ 5
great price does the job cheap
Style: CA10467
great price does the job cheap
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Reviewed in the United States on July 22, 2024
★★★★★ 1
Find another one
Style: CA10467
Honda Accord 2009 2.4L right after installing this filter I got check engine code P0172 "mixture is too rich", LTFT -20%, STFT -20%. After replacing filter with another brand problem gone. This filter is restricting airflow too much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026