He can use a megasquirt, or a Haltech, or a Link, or any programmable ecu that supports 4 cylinder engines. Just buy a faster car. I spent thousands improving my truck over a long period of time. (4 years). I almost got what I wanted too but you should know there are features that make it an incomplete quest regardless of what is achieved . comfort, suspension. air con, cooling, turbo(?), engine and gearbox, diff, speedo, fuel supply, fuel distribution, tyres, brakes, interior lighting, privacy glass or tints, adjustable steering column , interior space, sounds, exhaust, air filter, intake mods, cam rods, pistons, ..... IT NEVER ENDS. Best of enjoyment there pal. hope it works out for yuh? Oh yea! Insurance must be recorded what mods there are, and at an early stage most insurers will dump yuh.