SKU: 44108498706

Supertech HEVN-1003 - Supertech Performance Valves - Honda D16A6/D15B Exhaust Racing valve 25x5.45x118.

Sale price$20.04 Regular price$22.27
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

Supertech HEVN-1003 - Supertech Performance Valves - Honda D16A6/D15B Exhaust Racing valve 25x5.45x118.Supertech HEVN 1003 Supertech Performance Valves Honda D16A6 D15B Exhaust Racing valve 25x5. 45x118. 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 HEVN-1003 - Supertech Performance Valves - Honda D16A6/D15B Exhaust Racing valve 25x5.45x118.

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: 44108498706

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Alex K
West Palm Beach, US
★★★★★ 5
Fits perfect
I have a ‘23 jeep grand Cherokee overland. Super easy to install. Fit perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
L
Verified Purchase
Lance E. Thompson
Massapequa, US
★★★★★ 5
Excellent fit for my 2023 Grand Cherokee limited l
Not sure why others are saying airflow is decreased or it doesn't fit if they apply it to the correct vehicle. I have a 2023 Grand Cherokee Lmited L and it took me all of 5 minutes to change out the filter and I have to say, this filter is much better quality than the Mopar filter that was in there. There's absolutely no decrease in air flow and it's like a custom fit in the space. The hardest part about the entire process was emptying out the darn glove box!
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Reviewed in the United States on May 22, 2025
R
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Rob
Chelsea, US
★★★★★ 5
Nice glasses
Light weight and comfortable
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Reviewed in the United States on August 11, 2025
D
Verified Purchase
Danielle Kunz
Lowell, US
★★★★★ 2
Weird smell and reduction in air flow
The filter has a strange smell to it which I am not sure if mentioned in the description. It also seemed to reduce air flow due to the addition of the carbon pellets. Had to run the fan on full to get same amount of air flow usually occurring on 3.
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Reviewed in the United States on December 14, 2025
S
Verified Purchase
Speedracer Girl
Lexington, US
★★★★★ 5
Easily Replaceable Filter 2023 Jeep Laredo
Fits 2023 Jeep Grand Cherokee Laredo Altitude and took all of 10mins to replace by a girl.
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Reviewed in the United States on March 8, 2025

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