So my friend has a 2015 PP that is upgrading his brakes so I am taking his 6 piston Brembos to upgrade my 2015 non PP 4 piston brakes. It looks like a direct fit. It seems the dust cover is different, rotors, brake pads but that's it. I'll be getting SS brake lines as now is the time to do that. So am I missing anything? I'll get a new crush washer for the banjo bolt obviously. Any recommendations would be greatly appreciated and/or required part numbers or sites. -Shane