SKU: 6017019206

Supertech Exhaust Valve | Inconel | Single Groove | BMW S42/M42/M50/S50/M52/S52/M54

Sale price$52.07 Regular price$57.86
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Supertech Exhaust Valve | Inconel | Single Groove | BMW S42/M42/M50/S50/M52/S52/M54Supertech Performance BMEVI 1030S BMW S42 M42 M50 S50 M52 S52 M54 Exhaust valve 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


Supertech Performance BMEVI-1030S BMW S42 / M42 / M50 / S50 / M52 / S52 / M54 Exhaust valve

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.

Specs:

  • Head Diameter - 30.50mm (STD)
  • Length - 105.65mm
  • Material - Inconel
  • Stem Diameter - 5.96mm
Note: To be used with KPR-6S/7. PRICED INDIVIDUALLY.


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.

Fits:

  • BMW S42 / M42 / M50 / S50 / M52 / S52 / M54
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: 6017019206

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4.4 ★★★★★
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Kevin Brocksieck
Omaha, US
★★★★★ 5
Convenient product but not worth the money versus regular sunscreen. Good for convenience
Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
Great product and easy to use but not worth the extra cost for the convenience
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Reviewed in the United States on May 20, 2026
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AmazonCustomer
Houston, US
★★★★★ 5
Dermatologist recommended
Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
I did a light study on these products and this one is recommended by dermatologist with lots of good reason. There’s one dermatologist on you tube that does the most extensive and short, to the point at the same time, explanation of the different products on the market and what you want in a sunscreen. It’s worth looking it up if you used a lot of this product. She wasn’t selling anything but suggested this as one that’s the safest to use you should look that one up if it’s a concern. It’s the best and most simplified piece that I’ve seen on the subject. I recommend this one because that doctor recommended it. I still tan with it but I don’t burn. My pasty white skin likes to burn lol. It stays on with water reasonably well. I like the small package. It lasts pretty good too. I try to travel light and things like this really help. With a light load towel and a few things compact I can carry everything in a very small gym bag. This compact packing is awesome. The speedstick type applicator. The whole thing isn’t just perfect and a great product overall
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Reviewed in the United States on April 26, 2026
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Amazon Customer
Lexington, US
★★★★★ 5
Silky Smooth
Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
Silky smooth texture, goes on easily and works well. Feels a little thick and greasy but not as much as other brands.
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Reviewed in the United States on May 25, 2026
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Kerystin ruibal
Los Angeles, US
★★★★★ 5
Great sunscreen
Style: Sunscreen Stick, Size: 1.5 Ounce (Pack of 1)
Waterproof and helps from getting sunburned love theas sticks
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Reviewed in the United States on May 27, 2026
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Ed
Louisville, US
★★★★★ 5
Great Even With Excema
Size: 0.47 Ounce (Pack of 1)
This product is amazing. I have fairly bad eczema and am a 59-year-old woman so I've had it my whole life. My lips have had bad eczema since they were sunburned 4 years ago. I had to let them heal before I could use any products but since they have healed, I have been using this product on my lips for sun protection during golf and running outside in Florida. It doesn't bother my eczema at all and in fact I think helps my lips stay moist and even helps heal them when a spot starts to occur. I have about six of them spread out in purses and cars and different spots in the house and of course my golf bag. I would highly recommend this product. It does make my lips turn white but I really could care less because of the level of protection that it provides. It's worth it and it wipes off easily with a tissue. There are many, many products that Ive tried that irritate my lips and cause a rash and this is one of the few that does not.
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Reviewed in the United States on December 29, 2025

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