if he is looking for ton of mid range i would say try the hetrick racing pipe... it is decently cheap and is a really great pipe, the power from high 2nd threw mid 4th is the most increase and a little everywhere else
thanks to my 04 sponsers: broque ward racing, ac racing, fibe industries, tag metals, rtc racing products, fmx racing, pappy's performance coatings
current bikes
250r-esr 310/ keihin 38pwk / jrd + +1 long travel/ fabtech 88 swing/ front pep triple rezzies comp adjust/ galfer/ hiper beads/ razr mx/ tag/ durablue/ ac/
^just a taste^
300ex- r- razrs douglas .190 f- fast treckers douglas .190, ac bumper w/ mudscreen, renthal ,trail tech lights, K&N filter, Outerwear, K&N jet kit, powroll airbox lid, hetrick pipe, custom length works dual rate fronts with rezzies, works rear quadstar shock with rezzie, graydon proline nerfs, lsr axcaliber axle, burgard +1 400ex a-arms, galfer +2 brake lines
old bike(s)- 01 250ex