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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
Supertech BMW M50/M52/S50/S52 Inconel Exhaust Valve - +1mm Oversize - Set of 12Supertech Performance BMEVI 1031S BMW S42 M42 M50 S50 M52 S52 M54 Exhaust valve Set of 12 Specs: Head Diameter 31. 50mm (+1. 0 over) 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
Supertech Performance BMEVI-1031S BMW S42 / M42 / M50 / S50 / M52 / S52 / M54 Exhaust valve
- Head Diameter - 31.50mm (+1.0 over)
- Length - 105.65mm
- Material - Inconel
- Stem Diameter - 5.96mm
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:
M50TU |
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M50TU |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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.
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4.2 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Designer quality and design
Color: Vanilla/Acorn
This is the second Michael Kors bag in my collection, and I’m pleased with both of them. These are quality items that are timeless and complement pretty much everything that i own.
At first, i thought that this was a travel bag in the sense that you would put toiletries in it, but it’s intended to be a smaller crossbody bag that you can travel with. It’s meant to hold essential items and look quite stylish while doing so.
I chose this color since my luggage set and toiletry bags are all cream and brown. Classic, chic, elegant and sophisticated without screaming that this is a designer bag.
This comes packaged beautifully and carefully so that it’s protected. The strap is adjustable on both sides. The bag lives up to Michael Kors quality and is worth every penny. I need a matching wallet or wristlet NOW.
Highly recommended if you appreciate designer products that have a higher price point but will last for years and always be in style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
★★★★★ 5
Beautiful Crossbody!
Color: Vanilla/Acorn
In my opinion, this is the perfect crossbody. First, it is very stylish- Michael Kors Signature design & lovely leather trim. I have been searching for a crossbody and this fits all my needs. Zipper pocket is perfect for my cell phone, inside has plenty of room and is a few inches wide at the bottom- not flat. The shoulder strap is wider at the shoulder for comfort- such a nice feature. Great bag!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Bag
Color: Brown/Acorn
High quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
Worth the money
Color: Gold-tone Hardware/Leather/Dress Blues
Was made of excellent material and put together nicely. Looked like black in the picture but was dark navy, I just didn’t read the description.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Perfect size
Color: Vanilla/Acorn
Perfect size . This will hold everything you need. It’s not too small not too big
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
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