i just learned that a reed spacer (if between cage and jug) increases low end. so if i added that for low end, and an exhaust designed for top end, this would increase both power ranges, not cancel each other out, right? and is a reed spacer a noticeable diff? would i have to buy one, or could i fab it up myself with proper tools? i havent priced them yet to even see if it would be worth the effort.