More S4 Power
The following is not a step-by-step guide but rather a general overview of what's involved to upgrade the brakes. The nitty gritty details are up to you and the specifics associated with which brand of brake kit you purchase. As always, if you doubt your ability to perform the upgrade have a pro do the job for you. Don't forget... never work on a vehicle supported by just a floor jack--use jack stands!!
Be EXTREMELY CAREFUL with brake fluid. If you get it on your paint it will quickly ruin the finish! Brake fluid dissolves paint!! Don't believe me? See the picture below. If you do get it on the paint rinse it off ASAP with water. Brake fluid is water soluble.
Tools 'n stuff (may vary depending on your kit):