Hi guys..

I have a slight problem with my rxpx260,,

I've run it a few hrs and then had my ecu done for CC stock racing and have also fitted valve train from rive and air filter 4".. Anyway all is good except that sometimes the rpm runs low for about 3sec at 5000rpm then gose like normal, not sure what the issue is because it only happens a few times.. Any advice on what to check? Also I haunt fitted an impeller yet so I was wondering ifnyou guys had any recommendations? Correct me if I'm wrong the oem impeller is a 15/22 which I think is too big..

Thanks for your and appreciate your recommendations guys