buddy dont mess with the ignition system,if it goes bad out local mechanics r dumb enough not to fix it properly but wt u can do is change plugs,plug wires n coil,
im not sure which coil to use,wassay_ ahmed can help u better in this matter
but for plugs u should use ngk bp45egp n wires ultima 8.5mm
what exactly do u want to achieve by doing this?i mean you want performance?u want good engine running or what else?
no upgrading coil,wires n plugs will not harm your engine in anyway