Supertech Performance BMEVN-1040 BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stock Size
SKU: 50440060010

Supertech Performance BMEVN-1040 BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stock Size

Sale price$22.62 Regular price$25.13
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Description

Supertech Performance BMEVN-1040 BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stock SizeSupertech Performance BMEVN 1040 BMW M3 S54 Exhaust valve 30. 5x5. 95x126. 10mm SS Blk. Nitrided Stk. size 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

Supertech Performance BMEVN-1040 BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stk.size

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: 50440060010

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NM
Houston, US
★★★★★ 4
Love
Size: 5.5 Big Kid, Color: Black
They can be nice casual dress shoes that go with formal. They run small but fit well in my 100 year old who relatively has wider feet. I like the color that is all black. Easy to put on and nice and comfortable for daily wear.
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Reviewed in the United States on July 21, 2025
M
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Maya82
Draper, US
★★★★★ 5
Cute and comfy shoes!
Size: 4 Wide Big Kid, Color: Black/White
I like my new shoes!! My dad ordered these shoes for me and I love them. They are so cute and stylish. They fit well because of their wide size so my toes have enough room. They are not to heavy so I can easily run ostead of my feet being weighted down. They are very durable because i have been using them and they don't easily rip or tear. I love these shoes.
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Reviewed in the United States on March 5, 2025
J
Verified Purchase
JStevens
Massapequa, US
★★★★★ 5
Great Quality and Style!
Size: 11.5 Big Kid, Color: Black/White
These lightweight athletic shoes are of great quality and durability for a child on the go.
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Reviewed in the United States on February 1, 2026
J
Verified Purchase
Jewelie Mauser
Birmingham, US
★★★★★ 1
Runs small
Size: 11 Wide Big Kid, Color: Black/White, Size: 11 Wide Big Kid, Color: Black/White
Runs extremely small, but does look like a nice shoe. I ordered 11W for my grandson. The image shows a different brand size 10 red shoe. As you can see the red one is bigger and wider than the new one ordered.
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Reviewed in the United States on March 2, 2026
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Verified Purchase
Joe
Phoenix, US
★★★★★ 3
Good. Just good.
Overage at best. Not a bad sneaker for running and courts. The bottoms wore out faster than I thought but they are comfortable.
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Reviewed in the United States on March 5, 2025

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