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IMS Upgrade Kit for MY06-08. Engine disassembly required and tool kit 106-08.21.

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IMS Upgrade Kit for MY06-08. Engine disassembly required and tool kit 106-08.21.


In stock

SKU: 106-08.30

The First. The Original.

The IMS Retrofit is a registered trademark of LN Engineering LLC and the original ceramic hybrid ball-bearing replacement for the M96/M97 engine - the only one trusted by hundreds of independent mechanics and used by dealerships worldwide.

The IMS Upgrade for MY06-08 utilizes an adapter bushing that converts the larger bearing journal to accept the Single Row Pro IMS Retrofit (included) so that after engine re-assembly the IMS bearing can be serviced without future engine disassembly.

If you have a 2006-2008 Boxster, Cayman, or 911, don't worry about your IMS bearing. Keep reading below as to why and what you can do about it.

What can I do about my non-serviceable MY06-08 IMS Bearing?

The incidence of failure with a 2006-2008 M96 or M97 Engine as found in the Boxster, Cayman, and 911 that have the larger (but non-serviceable) IMS is highly unlikely. Best estimate is about a 1% failure rate.

The IMS can be changed and updated to the IMS Upgrade with a Single Row Pro or the IMS Solution (which is a permanent fix), but the cost on average is $15-20k for a full rebuild, including addressing known issues while the engine is apart. The upside is that you can increase the displacement up to 4.0 liters with our Nickies cylinders.

However, there is some preventative maintenance you can do. When you have your clutch replaced, it's best to have the grease seal removed off the original bearing to allow engine oil to better lubricate it. At that time, you can reseal the IMS flange and have the rear main seal replaced as well.

There is a black plastic seal on the front of the bearing - you would use a dental pick or something similar to pop the seal out of it's groove. Just be sure not to loose it in the engine when you do remove it. We don't have a how-to for this, but I found a short video on YouTube that shows seal removal on a ball bearing.

The larger bearing found in MY06-08 engines has the same load capacity as the early dual row, which have proven to be the most reliable of the factory bearings. I wouldn't worry too much about it after you pull the grease seal. There is no need for a direct oil feed or forced oiling for the factory ims bearing as the bearing will be submerged in engine oil once you have the grease seal removed.

We would additionally recommend changing your oil every 6 months or 5,000 miles and use a quality oil like Driven DT-40 along with installation of one of our spin on oil filter adapters and magnetic drain plug.

All other bearing replacements are just imitations.

  • All genuine LN IMS Retrofit kits come laser etched, engraved, and serial numbered to validate their authenticity and feature custom-made, ceramic hybrid ball bearings made exclusively for LN Engineering.


NOTE: Warranty requires registration and compliance with program requirements.For more information and application guidelines please visit IMS Retrofit website

Note: Free basic technical support is provided through our ticketing system. Assistance with the IMS procedure is not provided outside of directives and videos provided online. Advanced Technical Support (ATS) is a paid service where you can speak to an actual technician experienced with the IMS procedure and your vehicle to assist in case you run into a problem you cannot solve on your own.





IMS Pro Tool Kit 
 Supplemental Tool Kit 
M96 Faultess Tools IMS Tool Kit


 - Required - Recommended


Additional Information

Brand IMSS
Manufacturer's Suggested Retail Price No

Important Seller's Note

The Seller, hereby expressly disclaims all warranties either express or implied, including any implied warranty of merchantability or fitness for a particular purpose, and neither assumes nor authorizes any other person to assume for it any liability in connection with the sale of this part(s) and/or service. Buyer shall not be entitled to recover any consequential damages, damages to property, damages for loss of use, loss of time, loss of profits, or income, or any other incidental damages. In addition, expressly excluded is any liability for defects pertaining to safety or performance, by way of ‘‘strict liability’’, negligence or otherwise. In the event of non-payment, the Buyer agrees that the costs of collection including court cost, and reasonable attorney’s fees, shall be recoverable from the Buyer. The Buyer has read and with any transaction, agrees to all of the terms and conditions in connection with the Seller.

Terms: • All Returns/Exchanges Require Written or Verbal Pre-Authorization and RMA Number. • Positively No Exchanges Without This Invoice. • No Refunds On Opened Packages Or Used Parts. • Items Returned Must Be In Original Packaging. • No Refunds On Special Orders. • No Return On IMS Parts. • No Refunds After 30 Days. • 25% Handling Charge On All Returned Items. • No Returns On Electrical Parts. • Refund On Purchases Paid By Check Are Refunded After Check Clears. • Limited Lifetime Warranty on NSC plating provided by Millennium Technologies LLC and subject to their terms and conditions. • There is no warranty on blocks processed with the Nickies Lite direct plating process. • Any Damage Must Be Reported to the Shipper and LN within 24 Hours of Receipt.

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Questions or comments? Feel free to contact us before ordering. Open a service ticket, call 815.472.2939 or email