★★★★★ 5
Good product
works well for bmw.
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Reviewed in the United States on January 21, 2026
CRUPI I-BEAM STEMSCrupi's I Beam stems are CNC machined from 6061 T6 billet aluminium and are amongst the lightest weight stems on the market! The I Beam features extensive external machining, the design is visually appealing yet stiff and strong. The CNC machined and embossed Crupi logo on the faceplate gives this stem it's unique look. Dual opposing pinch bolt design and a front loading cap making bar installation easier. Multiple sizes available! Size Clamp Bolts
Quick Dispatch:
Your CRUPI I-BEAM STEMS orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your CRUPI I-BEAM STEMS ships.
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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]
- Please click here for more details>>> Return & Exchange Policy
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Great oil and makes my engine run quieter
I noticed the engine running much quieter using this oil. The pour mouth is pretty unique for this brand, you can just open the interior cap, pull up the accordion neck and pour into the engine which provides better control over traditional wide mouth, thus less messy. This oil rarely goes on sale and is typically 1.5x to 2x more expensive than the more common US brands.
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Reviewed in the United States on August 28, 2025
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Best synthetic oil BMW
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Last long
Love it ! Since I have a BMW this oil it’s good for it .
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Reviewed in the United States on March 9, 2026
★★★★★ 5
FRIENDLY REMINDER Don't overtighten the bolts
MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.
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Reviewed in the United States on January 9, 2026
