SKU: 28820508641

Supertech HIVN-1004-0 - Supertech Performance Valves - Honda B18A/B Intake Valve 31.00x6.57x105.40mm / SS

Sale price$19.42 Regular price$21.58
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Supertech HIVN-1004-0 - Supertech Performance Valves - Honda B18A/B Intake Valve 31.00x6.57x105.40mm / SSSupertech HIVN 1004 0 Supertech Performance Valves Honda B18A B Intake Valve 31. 00x6. 57x105. 40mm SS Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either

Supertech HIVN-1004-0 - Supertech Performance Valves - Honda B18A/B Intake Valve 31.00x6.57x105.40mm / SS

Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either chrome coating, used in high performance valves, or hardened black nitrided which is most popular in European and Japanese motors.

Supertech High Performance Race Engine Valves features:

  • The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum)
  • Surface finish is smoother than with chromed stems, having less friction between stem and guide.
  • Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).
  • Higher rpm's engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
  • The nitrided layer is adhered to the base material at a microscopic level, so does not"flake" or brake when the valves bend due to impacts with the pistons.
  • The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 28820508641

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4.1 ★★★★★
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Nicky Goldsmith
Grantham, US
★★★★★ 5
Ridiculously satisfying!
Size: iPad A16 11th/10th, Size: iPad A16 11th/10th
YES! I am completely obsessed with the SPARIN Screen Protector for iPad! From the moment I applied it, my screen looked crystal clear and felt silky smooth like butter under my fingers. The fit is absolutely perfect for both my 11th and 10th generation iPads, hugging every edge without a single bubble or misalignment. I love how responsive it is... swipes, taps, and even intense drawing sessions feel flawless, like my iPad is brand new again. The protector is tough and scratch-resistant, so I can toss it in my bag without worrying about keys or pens ruining my screen. I also love that it doesn’t mess with the display brightness or clarity, so everything still looks vibrant and sharp. Applying it was super easy and stress-free, which honestly surprised me because I expected a million bubbles or frustration. Five stars all the way for a screen protector that makes my iPad feel safe, sleek, and ridiculously satisfying to use every single day!
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Reviewed in the United States on February 25, 2026
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Jat
Boise, US
★★★★★ 5
Happy With The Quality of This Screen Protector
Size: iPad Air 13'' M4/M3 /M2 & iPad Pro 13'', Size: iPad Air 13'' M4/M3 /M2 & iPad Pro 13''
This is my Amazon review for the SPARIN Screen Protector for iPad Air 13 Inch M4 2026 & M3 2025 & M2 2024 (8th/7th/6th Generation) & iPad Pro 13 Inch M5/M4 (8th/7th Gen), Case Friendly, 2 Pack Tempered Glass, Support Apple Pencil. This is an easy to apply screen saver with few bubbles to smooth out. It is very clear and covers the screen perfectly. I literally can only see it is on because of the cut-out over the camera. It is very thin and transparent. My iPad also responds precisely the same to my touch and pencil, so the touch sensitivity feels great. I am very happy with the quality of this screen protector so far. It seems to be a good quality screen protector. Thanks, Amazon.
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Reviewed in the United States on May 26, 2026
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Minnie
Phoenix, US
★★★★★ 5
Nice protector!
Size: iPad pro 13'' 7th (2024)
Great product and value! It fit my iPad Pro nicely. -Went on easily.
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Reviewed in the United States on May 25, 2026
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Ashley Cochran
Boise, US
★★★★★ 5
Great quality product
Size: iPad A16 11th/10th
This is a great quality product that is easy to apply. It's scratch proof with no glare on the screen. We were able to apply this screen protector with no bubbles on the screen. It's heavy duty and will prevent screen cracking if this is dropped. I would definately recommend this product!
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Reviewed in the United States on May 11, 2026
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Verified Purchase
Nandu
Grantham, US
★★★★★ 5
Screen protector
Size: iPad Air 11" M4/ M3/M2, Size: iPad Air 11" M4/ M3/M2
I’m really happy with this screen protector for my iPad. The quality feels really good, and it fits perfectly on the screen without affecting the display quality or touch sensitivity. I was worried it might make the screen look dull or reduce responsiveness with the Apple Pencil, but everything still works super smoothly. It also helps reduce fingerprints and keeps my screen protected from scratches, which gives me peace of mind while carrying it around daily.
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Reviewed in the United States on May 13, 2026

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