These plates are designed as a retrofit cavitation plate for the old style AND new style K&B 7.5/11cc size lower units. These are much larger in size than the stock cavitation plates increasing down force from propwash and improving handling characteristics of most tunnels. These plates are roughly the same size as a Lawless plate. The length and width can also be easily trimmed should you want it smaller. These come with stainless hardware as shown. Uses an OS or StumpFAB style water pickup, not included.
These plates DO require some drilling and countersinking by YOU. It’s a fairly easy task to install these with a little patience.
These can be installed on the top of the old cav plate by trimming the end off of the existing plate or can be mounted from the bottom side of the existing plate. Either way that works for your situation is ok. There are several pictures that show these mounted in various way to the new and old style lowers. StumpFAB will also install these plates for you free of charge, but the customer is responsible for shipping to and from.