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.