I have a 2000 civic si with a jrsc with 11lb pulley. It has a Hondata ecu that has been tuned but having issues with the car wanting to go into limpmode after a while of driving. During boost there is no problem until it comes out of boost or sits at idle. It runs real rough then goes into limpmode. It does throw a code but do not have the software to find out since it has the hondata ecu. Is there anybody running a jrsc on a b16('99 or '00) without any issues? I am not sure if it is a tune issue, compatibility/system issue or an electrical/grounding problem. Please let me know if you are running a system that works and is reliable or let me know if you are seeing issues like this.