Originally Posted by AF
I'm a big fan of B20's if you know it's limits and have someone with a good idea of how to tune properly. They can put down some big numbers, even without a sleeve.
I'd rather not take a risk with the inferior sleeves that crack regardless of tune. Some crack, some don't. It all depends on how lucky you are.
But, it is just my opinion. As long as the risks of cracked sleeves are assumed and the laughable amount of extra torque gained from the B20 over B18 is something you want to deal with, go for it.