I'm thinking about doing a lift and some tires for my truck. Was going to do some small upgrades to my brakes. Do they make drilled/slotted rotors and better pads. Also do they offer Stainless steel brake lines??

IIRC Brembo makes some slotted and drilled rotors and better brake pads. You can also get stainless lines for it, they usually are available from any offroad shop and are installed with certain lifts.