I've read around about people modding their stock GST tuned pipe, taking out the baffle(s). How does that affect the motors torque curve, does it typically give you more low-end punch, top-end speed, or just plain more all around?

Last night after running a few tanks through it I went home and removed the "ring" baffle and left in the "cone" looking one since that one retains the o-ring seal, without it the pipe would possibly leak?

All noise levels aside, what is everyones thoughts on these mods and are they worth it?