So I'm finally getting around to upgrading my brakes to the factory Brembos with some upgrades from the factory setup. so far I'm going with the factory calipers, stoptech slotted 1 piece rotors, Vorshlag SS braided lines, Vorshlag ducted backing plates, titanium backing plates, Motul 600 fluid. where I'm stumped is with the pads, I'm considering the following pads based on reviews: Carbotech 1521, Carbotech AX6, and Porterfield R4S. I would go with the factory pads but I'm pretty sure I could overheat those on spirited drives without much effort and that is the last thing I want to do. I do plan on doing some track days with the car but I'll get a set of dedicated pads and rotors for that. what do you recommend from your track day experiences? I can deal with extra noise and dust since my car gets cleaned weekly, I also plan on upgrading the rear with larger rotors and pads after the summer.