if u are planning to just do i/h/e u really don't need any fuel managment system once u get into cams, and interanls then u need to up fueling and messa round with the Vtec engagement point. on my 01 GSR, i have skunk2 intake, skunk2 valve train, skunk2 cams, comptech headers, comptech ice box, hondata gasket, aem 5 bolt cam gears, Apexi N1 exhuast, and VAFC 2, and i haven't up the fuel yet, i just raised my vtec engagment point to about 6k and it runs great, oh and i am pretty much street legal even in cali. which is important if u are going to be having a daily driver.. and want to keep your reliablity as well