Ok I know DMC 916 are a low mid range pipe and shearer are drag pipes. I'm wondering how DMC 916 would do on a 4 mil dune/play port? Would they have good mid-high?. I'm also wondering do shearer have good mid range? I do a lot of trail riding 3rd/ 4th gear trails and I do a lot of open road riding/ dragging. What should I go with?