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Ships within 48 hours · Estimated delivery Oct 11 - Oct 16
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Description
Supertech Exhaust Valve | Inconel | Single Groove | BMW S42/M42/M50/S50/M52/S52/M54 (31.5mm)Supertech Performance BMEVI 1031S 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-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.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Great for aggressive chewers!
This item has held up for 4 months so far! My dog loves it, carries it everywhere. It's one of his favorite toys and he's been through so so many but this is the only one to hold up. However there are CONS! We have dubbed this bone "the cheese grater". My dog loves to bring his toys to us and press them against our legs to get our attention. So after a little chewing, the ends become very rough. When he runs by us with it in his mouth or presses it up against our legs, it tears our skin up! Also, the bone is very heavy so we have to watch out for our toes because Hank will drop it right on our feet if we aren't paying attention. Other than that, it's great! When it gets dirty, I just throw it in the dish washer and rinse it off after the cycle is done. Cleans up nicely! Would buy again if needed! Recommend for aggressive chewers!
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Reviewed in the United States on July 12, 2023
★★★★★ 5
This is the one for your dog
Size: Large
My 40 pound Mini Aussi is a very agressive chewer and goes through toys lightning fast===untill I got her this bone. She has had it several weeks and it still survives. She takes it everywhere she goes and it is, by far her favorite toy. I think she has met her match. One warning though. We have hardwood floors and it gets a bit noisy at times. That's just a small issue though. If Dixie ever destroys this (doubtful) I will not hesitate to buy another. Great toy and I coming off and she coming off and she wqw cfully recommend it. WARNING{ This is/was a great toy for my 50 pound Austrilian Sheperd, However it is not indestructable. It lasted about 3 months until the white parts started coming off and she was injesting it.
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Reviewed in the United States on September 20, 2023
★★★★★ 4
Great product
Size: Large
I was hesitant about buying this product, but I'm so glad I did. My dog (who is a very aggressive chewer) absolutely loves this toy. He will spend hours chewing on this toy. He carries it around the house and will show it off to anyone who visits. Since getting this toy for him, he has stopped chewing up other toys and focuses his chewing and destructive chewing on this toy. He has not managed to destroy this toy as of a month of chewing.
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Reviewed in the United States on February 8, 2024
★★★★★ 5
Dog toy
Size: Large
This one is actually still intact. But only because my dogs don't like it!
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Reviewed in the United States on May 24, 2026
★★★★★ 3
Not that great
Size: Large
My dog chewed on it a couple times but is mostly not interested in this toy.
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Reviewed in the United States on May 18, 2026
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