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- USA
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
Flowtech Rams Horn Exhaust Manifolds - Natural Uncoated - 11704-RFLTOverview: Flowtech exhaust manifolds are the perfect combination of quality and value. These Rams horn exhaust manifolds fit all popular hot rods with the popular small block Chevy engine. Features: Tight fit block hugger design for popular hot rod and street rods powered by the popular small block Chevy motors Cast iron construction styled in the vintage Rams Horn design for maximum engine clearance and maximum strength Smooth transition, 1 5 8
Overview:
Flowtech exhaust manifolds are the perfect combination of quality and value. These Rams horn exhaust manifolds fit all popular hot rods with the popular small block Chevy engine.
Features:
- Tight fit block hugger design for popular hot rod and street rods powered by the popular small block Chevy motors
- Cast iron construction styled in the vintage “Rams Horn” design for maximum engine clearance and maximum strength
- Smooth transition, 1-5/8” diameter primaries are used for increased exhaust flow increasing performance and improving throttle response
- 3/8” thick 2-1/4” collector for maximum strength
- Thick manifold flange pads for a leak-free seal and maximum strength
- Premium aluminum manifold gaskets and collector hardware is included
- This manifold is raw "uncoated" so it is perfect to paint match or coat to match engine or body design
- Sold as a pair
Application:
- Universal
Specs:
| Brand | Flowtech |
|---|---|
| Collector Diameter | 2.25 inch |
| Emission Code | 4 |
| Engine | Chevrolet Small Block Gen I |
| Flange Style | Square Port |
| Gaskets Included | Yes |
| Hardware Included | Yes |
| Header Finish | Natural |
| Header Style | Ram Horn |
| Pack Qty | Pair |
| Primary Tube Dia. | 1-5/8 inch |
| Product Type | Manifold |
| Tube Diameter | 1.625" |
| Tube Material | Cast Iron |
| 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
4.4 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Let this restoration kit light up your life
Size: 1 Kit
I have a car that is 24 years old and is my daily driver. Understandably, the headlight lenses have deteriorated to the point where I was using my brights exclusively at night yet never being flashed to turn them down. I got quotes between 60-80 dollars per headlight for restoration which I just wasn't willing to pay so I decided on this kit to try restoring them myself. I read reviews before I ever make a decision on a product and noticed many reviewers of other products stated that this product works better so I went ahead and purchased it. Man, am I glad I did!!!
The kit arrived late this afternoon, I opened it, READ AND FOLLOWED THE INSTRUCTIONS and within 1 1/2 hours had turned a travesty into a triumph. I started by taping around both lights with 1 inch blue painters tape to protect the paint around the lights. The kit comes with everything necessary to remove most moderate deterioration but be sure to purchase one that corresponds with your actual situation. I believe my lenses were far beyond "moderate" but with some heavy elbow grease, the correct use of both supplied sanding disks and my hose set on "mist" I was able to sand off years of damage leaving behind a smooth, albeit opaque surface. After making sure everything was totally dry using both towels and my leaf blower, I was ready for the Magic!!! I opened the first clearcoat package (while wearing the provided glove) and lightly but steadily applied the liquid with the supplied towelette and the required 50% overlapping passes. The opaque lenses instantly turned clear upon contact with the clearcoat. After waiting around 25 minutes to be sure the lenses were completely dry I opened the second package of clearcoat and applied it in the same manner as the first. I had no misses or problems with my first coat but for those who do...NOW is the time to make corrections, NOT during the first coat process. Leave things to dry for around an hour and you are done.
The end result? AWESOME, INCREDIBLE, UNBELIEVABLE...shall I go on??? Not necessary, but I can say I am thrilled with the outcome. My wife said the lights look new and I agree, there is a night and day difference between before and after.
Only time will tell how long the restoration lasts but for now I am very very happy with the results I got from this 3M product. I highly recommend it to anybody who can read, understand and follow the instructions. 5 stars all the way on this one!!!
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Reviewed in the United States on June 24, 2025
★★★★★ 5
Excellent 3M Headlight Restoration Kit!
Size: 1 Kit, Size: 1 Kit
Better than expected results. This 3M Kit needs no drill; all done by hand. Check out their videos on YouTube; follow the easy instructions. This $10 3M Kit, an hour and a half of my time, saved me over $300! What a serious savings! Thank you 3M for another fantastic product!
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Affordable and it works !
Size: 1 Kit, Size: 1 Kit
Works great price is decent and easy to use
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Clean foggy headlights with ease.
Item Package Quantity: 1
I was very impressed with the results. Easy and fast to use. Really cleaned up the foggy appearance. I will definitely use it again.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great product
Item Package Quantity: 1
This product works awesome. Fast and easy. Customer service is to work with as well. Yes, I recommend this product. Head lights look better and visibility greatly improved.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026