My main issue is it's 60 more pounds I have to bolt on the floor. Oh, and then there's the ultimate performance issue to deal with too. I understand that the tu and M-54's aren't as developed as the M-50/52, how they will ultimatly respond to a good build up is anyones guess. I guess is it'll be at least 4hp more ultimatly, but that's a swag.

Sorry about the hi-jack OP....