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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
SUPERTECH (HEVN-1006F) EXHAUST VALVESupertech uses over 20 years of manufacturing experience to design and produce their Valves. Intensive testing and working closely with engine builders provides continuous improvements and provides the market with the best possible product for every application. High flow rate, durability and quality are all of great concern. Supertech understands that each motor is unique in its requirement and demands. There fore Supertech offers valves in a range
Supertech uses over 20 years of manufacturing experience to design and produce their Valves. Intensive testing and working closely with engine builders provides continuous improvements and provides the market with the best possible product for every application. High flow rate, durability and quality are all of great concern.
Supertech understands that each motor is unique in its requirement and demands. There fore Supertech offers valves in a range of materials to suit any motor.
* Stainless - Made as a one piece forged valve for higher strength and reliability. Supertech uses mostly EV8 (21-4N) for Intake and Exhaust Valves, however there are other alloys that are used with different heat treatments to manufacture Valves for specific applications.
To address the issue of high heat, Supertech uses two different types of coatings:
Chrome Coating - Widely used in performance valves
Black Nitride - This is a hardening treatment that provides a smooth surface then chromed valves and produces less friction between stem and guide.
* Inconel 751 - Nickel Base Alloy - Nickel base alloy is used for exhaust valves that reach very high temperatures, such as those in turbo or supercharged applications.
Supertech Valves are sold *Per Valve*. For Example, when order for a Model that requires 16 Valves, order ‘Quantity: 16’
Supertech understands that each motor is unique in its requirement and demands. There fore Supertech offers valves in a range of materials to suit any motor.
* Stainless - Made as a one piece forged valve for higher strength and reliability. Supertech uses mostly EV8 (21-4N) for Intake and Exhaust Valves, however there are other alloys that are used with different heat treatments to manufacture Valves for specific applications.
To address the issue of high heat, Supertech uses two different types of coatings:
Chrome Coating - Widely used in performance valves
Black Nitride - This is a hardening treatment that provides a smooth surface then chromed valves and produces less friction between stem and guide.
* Inconel 751 - Nickel Base Alloy - Nickel base alloy is used for exhaust valves that reach very high temperatures, such as those in turbo or supercharged applications.
Supertech Valves are sold *Per Valve*. For Example, when order for a Model that requires 16 Valves, order ‘Quantity: 16’
Head Diameter: 30.00mm (STD) Flat
Length: 106.45mm
Material: Black Nitrated
Stem Diameter: 5.45mm
Length: 106.45mm
Material: Black Nitrated
Stem Diameter: 5.45mm
| YEAR | MAKE | MODEL | CYLINDERS | LITERS | FUEL TYPE | FUEL DELIEVERY | ASPIRATION | ENGINE DESIGNATION | NOTES |
| 1997 - 2001 | HONDA | PRELUDE | ALL | ALL | ALL | ALL | ALL | H22A4 | |
| 1993 - 1996 | HONDA | PRELUDE | ALL | ALL | ALL | ALL | ALL | H22A1 |
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
4.6 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Sturdy, cute and practical.
Style: Squirrel
These are so cute and practical. I have 2 mini schnauzer puppies and they are addicted to this play. It comes with 5 squirrels. They dig and smush into the holes in the tree to get the squirrels out. I throw them around and they play and then I put all the squirrels back in the tree. Again, they go right back to the process of smushing and digging around to get them back out. ALL the squirrels squeak! Excellent item, very sturdy tree and the squirrels can withstand quite a bit of aggressive play. (I've had to sew them a couple times)
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Reviewed in the United States on February 5, 2026
★★★★★ 4
Durable and adorable
Style: Turtle
Big dogs need love too. My boy is a Lab/Pyrenees mix and he carries his babies around everywhere. He is so gentle with them. He loves to get them out of their house, and keeps him busy mentally and physically. They are definitely indoor toys, but I would highly recommend these if you have a fur baby that gets a favorite toy and cares for the special toys for a long time. The only down side is the external stuffed “house” rips apart so we are left with the little bunnies, squirrels and turtles without their homes.
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Reviewed in the United States on December 29, 2024
★★★★★ 5
Little dogs get overwhelmed
Style: Squirrel
It’s as described but my dog won’t play with it, I think it’s a bit overwhelming for a 5 lb yorkiepoo. She loves the squirrels individually but won’t pull them out of the toy stump. It’s made well and good quality.
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Reviewed in the United States on March 2, 2026
★★★★★ 5
Busy bee 🐝
Style: Bees, Style: Bees
Such a cute toy that my dog loves ! Yellow is her favorite and when she saw this she instantly gleamed with joy! I love that the dogs can also dig to find the bees which for a dachshund owner helped keeping her a busy bee
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Our Pup's New Favorite!
Style: Rabbit
This is my 2 year old Golden Retriever's new favorite toy! She was confused, at first, with why the carrot was lumpy, but when she discovered some little bunny ears poking out of the hole, she got excited and got to work. She loves pulling out her "babies," and any other smaller toys we put in there for her. The bunnies have become a favorite toy on their own, too, and she carries them around, and loves to hand them to us and look expectantly while we admire her "baby." <3 She's still young, so has pulled at the carrot quite a bit, but hasn't destroyed it. I'm pleasantly surprised by the durability so far!
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Reviewed in the United States on May 4, 2026