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Description
Long Tube Header for 1970-1973 Ford Mustang 351C-4V Silver Ceramic 32118FLT FlowtechOverview: FLOWTECH headers are precision engineered and leak tested to get maximum performance from your engine. Each header is formed from specially selected . 049 cold roll flash controlled tubing, and features FLOWTECH's exclusive, thick, mandrel formed Power Plenum collector. All ports are precisely fitted and finished with sturdy, leak proof O ringed port seals, and all FLOWTECH headers include all mounting hardware including bolts, nuts and
Overview:
FLOWTECH headers are precision engineered and leak tested to get maximum performance from your engine. Each header is formed from specially selected .049 cold roll flash controlled tubing, and features FLOWTECH's exclusive, thick, mandrel-formed Power Plenum collector. All ports are precisely fitted and finished with sturdy, leak-proof O-ringed port seals, and all FLOWTECH headers include all mounting hardware including bolts, nuts and premium gaskets. FLOWTECH headers are available with either a high-quality satin black paint finish or with a specially formulated, NASA-developed silver luster ceramic coating for rust and corrosion resistance.
Features:
- Improved Exhaust Scavenging for Increased Performance
- Leak Test For Max Performance
- Ceramic Headers
- Rust And Corrosion Resistance
- Mandrel-Formed Power Plenum
- Leakproof O-Ringed Port Seals
- Include All Mounting Hardware
- 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 | Silver Ceramic |
| Header Style | Long Tube |
| Primary Tube Diameter | 1-3/4 inch |
| Product Type | Headers |
| Tube Material | Mild Steel |
| Part Number | 32118FLT |
| 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
4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
Cotton Blend Was Just Too thick
Size: 3X-Large, Color: Black
I was surprised by how thick these boxers were, thicker than my jeans, much thicker than my PJs! Thick enough that I could wear them outside the home without jeans. In spite of the thickness, they were soft and very comfortable. The 3XL is a perfect fit on my 5’2” apple shaped, short waisted 215 lb body. The boxer cut helped prevent chafing, a major plus. Menstrual pads, with or without wings, do not adhere to this material, a major minus. Ultimately, feeling like I was wearing jeans to bed or wearing two pairs of pants outside the home, was just too uncomfortable for me. So disappointed because these boxers were such a great and comfortable fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
★★★★★ 5
Great fit!
Size: Large, Color: Beige
Most comfy undies THANK YOU!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
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