Hi Jason,
You can get around 186 BHP from superchips but be careful when having it chipped. I have had my ALFA 156 V6 chipped (I also own a Golf GTI 1.8T 2000) and drivability has suffered
I sugesst you speak to superchips and get a name of someone who has had it done.
As for the brakes, more power=more stopping power required, depending how you drive it. Long term I'd get drilled and grooved discs, with fast road pads (these should suffice) if you drive the brakes had you might get the fluid boiling (NOT GOOD!!) so bigger diameter brakes could be required (bigger surface area to radiate heat).
Hope this is of use.
Stripe