Add a little "power" to my DD engine

[Pettersen]

I have an rotaryworks 2,25" header, and the rest is more or less straight 3" pipes with 2 mufflers, and one buttplug from hell(to keep the noise down on the norwegian version of emissions, and i haven't bothered removing it yet since i suspect the car is way to noisy without it, but i'm planning on building a new muffler with a bypass/cutout valve)

I'm going to buy Haltech sport 1000 for the semi pp build, but i guess i could make that a priority, since i plan on using it on both engines anyway.