if you plan to put some cams in there, i say go ahead with hondata or aem instead of a vafc. they have way many more capabilities than a vafc. and if you intend to go crazy with the engine later, you'll already have a capable engine managment system.

 

cool, ride on for the info

 

Consider SMSP headers also, and the Fujitsubo RM-01A is a great exhaust that's quiet and makes good power also, far better than the Mugen.