RS4 Bigger Engine?

[ProjectRS4]

Hello everyone, I just got a HPI RS4 3 Evo and I was wondering if a bigger engine or a better engine can be placed instead of the stock engine. (Which is a G3.0) If anyone knows please reply as soon as possible.

 

[NCNitro]

Wolfpack Radicals use to make a .21 adapter kit for the RS4 3, not sure if they still do. But a high end .18 should be way more than you would need in an RS4

 

[ProjectRS4]

Wolfpack Radicals use to make a .21 adapter kit for the RS4 3, not sure if they still do. But a high end .18 should be way more than you would need in an RS4

Alright, thanks for the support.