SKU: 90048996586

Supertech SEVN-1015 - Supertech Performance Valves - Subaru EJ25 2.5lts/WRX Exhaust valve 33x5.96x108.3

Sale price$15.78 Regular price$17.53
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Description

Supertech SEVN-1015 - Supertech Performance Valves - Subaru EJ25 2.5lts/WRX Exhaust valve 33x5.96x108.3Supertech SEVN 1015 Supertech Performance Valves Subaru EJ25 2. 5lts WRX Exhaust valve 33x5. 96x108. 3 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 SEVN-1015 - Supertech Performance Valves - Subaru EJ25 2.5lts/WRX Exhaust valve 33x5.96x108.3

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:
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  • 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: 90048996586

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Kim
Louisville, US
★★★★★ 5
Cute shoes
Size: 2.5 Little Kid, Color: Lavendar
Cute, easy to slip on, and my very particular daughter actually wears them - which is saying a lot.
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Reviewed in the United States on April 4, 2026
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Nadezhda
Alexandria, US
★★★★★ 5
So cute and comfy for my little one!
Size: 11 Little Kid, Color: Black
Bought these for my 4 year old daughter and we both love them. She wants to wear them every single day! They fit true to size and look adorable. Great quality for the price.​​​​​​​​​​​​​​​​
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Reviewed in the United States on April 30, 2026
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Janet Cordes
Birmingham, US
★★★★★ 5
Great shoe
Size: 3 Little Kid, Color: Black
Great slip ins. Comfortable and good arch support for high arches. Cute style
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Reviewed in the United States on December 21, 2025
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NM_HS
Houston, US
★★★★★ 5
Hands free comfort!!
Size: 5 Big Kid, Color: Black
Superb comfortable, great quality and got it at such a good price. My daughter is very happy and wears these every day since a couple of months and they still look new. Best part hands free!!
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Reviewed in the United States on December 1, 2025
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omri
New York, US
★★★★★ 5
good shoes
Size: 8 Toddler, Color: Black, Size: 8 Toddler, Color: Black
fit great the child like it
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Reviewed in the United States on May 21, 2026

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