aftermarket dizzies are a waste of money. every dizzy is made the same and do the same thing. just some look better.the only thing i can think of that you don't have is heads and intake, unless you wanna switch to long tube headers. i would get a set of used gt40p or something of that nature and get them fully ported. if you also want to get inside the motor i would get some APR rod bolts because the stock bolts are weak and will give sooner or later. better safe than sorry, especially after all of the money you have in your car judging by your sig.