Will a -3 IMCO lower work on a BMax upper?
 

I already have a -2 on them, curious to know if a -3 will work? Drives are on boxes & only brings them roughly a 1/2 inch above stock. Would like to know if the -3 would make a difference.

Probaly your prop Will hit cavatation plate as the bravo drive need a step in the cavatation plate to turn the full diameter prop .
Imco use a special upper for the -3" lower

Hope this helps