Originally posted by DOMOisCOOL
Anyone have a wide bumper for this car or made one on their own? I modified my Kyosho V One R bumper to fit and it's saved me a ton of arms.
I believe the stock HPI R40 wide bumper will fit the Pro 4 as well, but have not tried it yet.*
*Edit: Stock R40 bumper will NOT fit. 
DOMOisCOOL: Try this page of this thread
Bumper Mod. Go about halfway down and I posted a 1:1 shot of a modded BRP bumper for a rough template.
JohnB: Thanks! Also, we are looking at a running change for the C-hubs. For now the fix is either a little heat to bend the C-hub or to file the steering block until it moves freely. We're working on it.