Weak links first following the most bang for the buck theory.
In the case of the R I did tires, tune, intercooler, exhaust, sways, spacers and then some new software to tweak the AWD and active suspension to keep up with all the above mods.
__________________
2004 S60R - 350+ HP, AWD, Custom FMIC & Exhaust, Active Suspension & A Big Set Of Brembos
Crazy Camber, Stretch & Poke; its the new triple-stack-bleacher-wing ricer fad that's all the rage nowadays, lol