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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
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Under Armor for life!
Size: 6.5, Color: (102) White/White/Circuit Teal
Love these! Comfy and fit true to size. Great quality. I wear them pretty much every day. Love the style and functionality!
Would definitely recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025
★★★★★ 5
Great shoe!
Size: 12, Color: (001) Black/Jet Gray/White
True to size, nice style, lightweight, and extremely comfortable. Purchased them before a trip that we did a lot of walking and never had sore feet. Did not need to break-in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025
★★★★★ 5
Comfortable to walk all day
Size: 7, Color: (102) White/White/Circuit Teal
Love my shoes! Comfortable, great walking shoes. Color is great too! Get lots of compliments on color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
★★★★★ 5
Perfect fit with or without shoe orthotic
Size: 7.5, Color: (101) White/White/Metallic Silver
Unbelievably comfortable. I have a lot of problems with my feet, but with these sneakers I can fit my shoe orthotic inside and still have a comfortable feel. I have ordered these shoes over and over. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
★★★★★ 5
Slip resistant in water
Size: 7, Color: (106) White/Silica Green/Hydro Green
Very comfortable and don't slip in water. Im a bath aid they work very good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
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