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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring KitExperience superior engine performance and reliability with the Supertech BMW S42 M42 M50 S50 M52 M54 Dual Valve Spring Kit. Designed specifically for BMW enthusiasts and tuners, this kit offers precision engineered valve springs to optimize your engine's valve control during high RPMs, enhancing power output and preventing valve float. The Supertech Dual Valve Spring Kit is manufactured to meet the highest quality standards, ensuring durability and
Experience superior engine performance and reliability with the Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit. Designed specifically for BMW enthusiasts and tuners, this kit offers precision-engineered valve springs to optimize your engine's valve control during high RPMs, enhancing power output and preventing valve float.The Supertech Dual Valve Spring Kit is manufactured to meet the highest quality standards, ensuring durability and consistent performance for your BMW's engine. Perfect for those who demand both street and track-level performance, these springs provide the stiffness and flexibility needed for aggressive driving and motorsport applications.
This kit is compatible with multiple BMW engine series including S42, M42, M50, S50, M52, and M54, making it an ideal upgrade for a variety of tuning projects. Backed by the trusted Supertech brand, you can be confident in the craftsmanship and engineering behind each kit.
Upgrade your valve train with the Supertech Dual Valve Spring Kit to unlock your BMW's full potential while maintaining engine reliability and longevity.
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
4.6 ★★★★★
Based on 114 reviews
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Product Reviews
★★★★★ 5
Pleasantly surprised
I’m two jars in and love it. I do use Botox, retinol, a good face wash, wash moisturize twice daily, etc etc. I struggle with moisturizer because I’m prone to breakouts. Idk what it is about this one but my skin loves it. It feels refreshed and soft. Added bonus, my eyebrows and lashes have gotten longer and darker quick! Obviously we all respond differently to products but I’ll be keeping this in my rotation
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Reviewed in the United States on June 3, 2026
★★★★★ 5
A thick and rich cream that smooths on nicely!
So I jumped on the Korean skincare bandwagon and decided to purchase some of the DR MELAXIN Products to try! I read many good reviews and decided it was worth the money. This first product is the Dr Melaxin Calcium cemenrete calcium volume cream. It comes in a 1.76 ounce glass jar. On the label there is a lot of word descriptions so I will add a few: Ex volume firming, rebornic 10,000 ppm hydrolyzed elastin and collagen extract. I have photographed label for viewing. The directions indicate to "apply a small amount of cream onto your face especially around the under-eye area". I found the cream thick and rich and I used it in addition to another Dr Melaxin neck and face product so I concentrated on only neck and under eye area. It is neutral in scent and is very thick so it feels like it is absorbing nicely. I have been using it for about a month now and have definitely noticed some improvement in the neck area so i will continue to use and layer with other products. I do recommend this line as the ingredients seem effective so far!
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Good product for face.
Great product. Works well with decreasing lines in face after half is used and with the serum. It does leave somewhat of a sticky (not grimy) texture which is uncomfortable if using at night.
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Loose under eye skin tightened and brightened!
I love this cream! It makes a huge difference in the strength of the skin under my eyes and smooths the look and feel of the wrinkled skin under my eyes. It brightens my under eye circles. I gave 4 stars because if you use too much it will start to roll off almost like skin does when it sheds or when you exfoliate. I use less now and it’s perfect.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Working on Deep Wrinkles Great Results
I really like this product, it’s been working well on deeper wrinkles, especially on my forehead and around my smile lines. With consistent use, I can see a noticeable improvement in how my skin looks.
The texture feels hydrating and smooth, and it absorbs nicely without feeling heavy. It leaves my skin feeling softer and more refreshed after each use.
I also like that it helps with overall skin appearance, making it look more even and a bit more radiant.
Minor note: Results take consistency, so it’s best to use it regularly to see the full effect.
Overall, this is a great product for targeting fine lines and deeper wrinkles. Hydrating, easy to use, and delivers visible improvements over time.
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Reviewed in the United States on April 15, 2026