shaved (OG) front tower
alum. front knuckles
alum. battery posts
slipper and center one-way assembly
CF upper deck
Losi springs and shock retainers
aftermarker BB steering assembly

It also came with the wing mount and gold button, forgot to include it in the pic.
Question: What parts from the onroad counterpart (YR4's) are compatible with this buggy? I know my LHS has a few YR4 parts. The motor mount on this has a few drilled holes, I'm thinking of replacing it but I don't know which one from the YR4 series will fit. There seem to a lot of variations of the YR4, there's YR4 II, M, M II, and some Type Js. Are the belts interchangeable too? If anybody can clarify for me, I'd appreciate it. Thanks in advance!