I installed everything myself. The $1305 is for a pre-programmed Honda p28 ECU (no tuning/programming required unless you heavily modify the engine, etc.), four fuel injectors (RC 440 mL), Hondata s200 interface box and OBD2B-OBD1 conversion adapter. This is why it's so expensive; it's just plug and play with no need to visit a dyno shop. It was a purchased at Jackson Racing's website.

The ECU's fuel and ignition tables are based on a vehicle equipped with the 190 L/h fuel pump (static fuel pressure at 42 psi), with stock intake, exh manifold, etc. VTEC engagement is preset at 4800 r/min. The ECU is tuned "conservatively", meaning that safety margins for detonation and idle quality were employed (at the expense of a few horses). Toyota uses this same approach of selling pre-programmed ECUs for use on Roots-type supercharger kits sold for their cars.