Magnus Drive gear uses HTD timing belt tooth profile, to accommodate higher torque loads, and is now integrated into the cam gear center section.
It can be purchased alone as a center, or can be purchased with the outside ring as well.
Mates up to Fidanza cam gears, can also be used to drive other external components if necessary from the cam.
Cam gears are universal will fit evo or DSM, and feature double dowel pin mounting holes, so you may double dowel your cams. 4G63’s feature a very large cam gear that can have alot of mass. Large accel G’s such as those associated with 1.00 60’s will require double doweling of the cam to help prevent shearing in Pro RWD drag race applications.