Arrma Granite Grom VS Typhon Grom - What's Better For You ?

Typhon Grom Buy Link :
https://www.parkflyers.com/products/t...

Steel Dif Cups Upgrade Link :
https://www.parkflyers.com/products/g...

Grom Assembled Oil Filled Differential 30T 0.8Mod, 3000cSt Oil (2pcs) Link:
https://www.parkflyers.com/products/a...

80 Weight Oil Link :
https://www.parkflyers.com/products/s...