Before I had the Raptor, I had a GMC Canyon. I put braided steel brake lines on it, and it made a whale of a difference in terms of brake responsiveness and apparent stopping power. It woke the ABS up, too. I'm eventually going to do it to the Raptor, but probably not until the garage floor warms up in the spring.
Stainless Steel Brake lines, Super Dot 4 fluid, slotted & cryofreezed rotors and better pads.