Before I ask my question, be aware that Im kind of a noob when it comes to brake theory and such.

I was looking around on here, trying to get some info on how to achive a firm brake pedal. All I could find were people removing their brake booster all together. I know that isnt a good idea. Not if you like having the ability to slow your car down. But if you want to safely achive a firmer brake pedal, what could you do? Would it be possible to install a booster of a different, probably smaller size out of another car? Or does the size of a booster not effect the feel of the brake pedal?