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Want to add more hp but Worried about spinning your crank hub? We have a Solution!...

Want to add more hp but Worried about spinning your crank hub?

We have a Solution!

Our Single Crank Hub kits are designed and manufactured in Lithuania and made from a solid block of thermally absorbed, heat treated steel and milled on a 5 axis precision CNC machine to create what we believe to be the strongest crank hub kit on the market today!

Our crank hub is offered in a 2 pin and upgraded 4 pin design for those looking push their S55 to the limits while having greater peace of mind. Please keep in mind neither version has had a known failure with 300+ vehicles on the road today and counting. Our crank hub has also been tested up to 1000whp without issue.

This kit includes all the necessary components to successfully replace the stock OEM crank hub with our single piece crank hub. Our kit now includes Hardened crankshaft damper bolts at no additional charge.

We offer professional installation for our kit at all of our approved dealer locations


Insane Performance CNC'ed Single Piece Crank Hub
Upgraded and Reinforced crankshaft Damper Bolts
Specialty Drill Bit
Drill Bit Fixture Tool For Easy And Precise Drilling

We suggest that this Crank Hub Kit ONLY be installed by a highly qualified shop and technician. Note: BMW specialty Crankshaft Alignment S55 Timing Tool and flywheel tool are required in order to complete this procedure.

Insane Performance will not be liable for Improper installation as it may cause catastrophic engine damage. 

s55 crankhub

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We have a 7-day return policy, which means you have 7 days after receiving your item to request a return. There is a 15% restocking fee. For turbos there is a 25% restock fee on canceled or returned orders To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, custom products (such as special orders or personalized items),. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards. Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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