Hi Guys

Just got my hands on riva 8650 ecu for a 2006 rxp with 50 lb injectors, ive also ordered dual valve springs, titanium retainers and rocker arm bolts which is a recomended upgrade along with the ecu. My 06 rxp currently have a 4 inch air intake system, R&D intake grate with Solas concord 14/19 impeller. My intentions were to put the ecu and valve train parts aside and wait for my 100 hourly service on the supercharger and upgrade it to a x charger and get a external intercooler and do all the mods in one go. but if i was to install the ecu and valve train parts not will i notice a reasonable difference with the extra rpm or should i just wait for the x charger and ex ic??