If you want the warrenty and red in the US, buy an LRP and then buy a Nosram case
JohnA I think your best bet is to find another car with the right sized kingpin, I know RC Lab have nice titanium kingpins that use the M3 thread but have too small a smooth section for the Cuda's standard hubs, may fit the Excel hubs. The kingpins are made by Titanium Racing, I'm sure they make them for a few other cars too. Best measure the size required and ask them if they have any that are the same.