SKU: 67699275933

Supertech BMW M50/M52/S50/S52 Inconel Exhaust Valve - Set of 8

Sale price$136.35 Regular price$151.50
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Supertech BMW M50/M52/S50/S52 Inconel Exhaust Valve - Set of 8Supertech Performance BMEVI 1030S BMW S42 M42 M50 S50 M52 S52 M54 Exhaust valve Set of 8 Specs: Head Diameter 30. 50mm (STD) Length 105. 65mm Material Inconel Stem Diameter 5. 96mm Note: To be used with KPR 6S 7. 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


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

Set of 8

Specs:

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

 

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
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    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]
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    SKU: 67699275933

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    AJ8
    Pawtucket, US
    ★★★★★ 5
    Good filters
    Size: CF11182&17220-61A-A00
    Fit well and easy to install!
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    Reviewed in the United States on May 24, 2026
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    Jerry
    Lowell, US
    ★★★★★ 5
    MDX filters
    Size: CF11182&17220-61A-A00
    The quality is excellent, the price is reasonable, and it's suitable for my MDX.
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    Reviewed in the United States on May 9, 2026
    A
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    Amazon Customer
    New York, US
    ★★★★★ 4
    Fit great
    Size: CF11966&CA12260
    Fit was great. Cabin filter was better quality than the original from GM.
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    Reviewed in the United States on February 18, 2026
    R
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    Rebekah
    Whiting, US
    ★★★★★ 5
    Good deal
    Size: CF10930&16546AA090
    Seems a bit thinner than my last two, but they did come together for the price of one. Seems to be of good quality non the less. Fits well in my 2014 Subaru forester
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 22, 2026
    S
    Verified Purchase
    stiff Ola
    Louisville, US
    ★★★★★ 5
    Good deal
    Size: CA12377&CF12157
    Easy to install and much cheaper than the dealership cost. Quality was good, also had installation instructions.
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    Reviewed in the United States on May 26, 2026

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