The last two pieces for my GT build were the chillers and BASH Bumpers.
Black Lightning rails, Roadster X fender, kush wide, enduro tire, and ignite hex tape. Had a float plate on the back on top of the stock bumpers but that loses you a bit of clearance. I am not ready to make a hub change now that the Enduro and other tires are coming out. I don't race or run mountain bike trails, occasional trails but mostly paved bike trails, streets, city areas, parks, and gravel trails when around. I noticed the chillers were wicking away the heat and my hubs felt cooler under similar temps and route. Plus they do look great.