Best thing to do is look in the tunning section here on the site, or look at www.tyga-performance.com and look up the power up for nsr's your head will need a hose and maybe a plug! have you done chambers, cans, jetkits, reeds stuffers, etc? really have a look at tyga or tunning section for lots of ideas, i cant commet on the wiseco stuff as mine are standard but @ 60hp thats fine for me!!!