So far I have seen their parts advertised for a while on their website and talked about on this forum. The light bore kit certainly looks nice, but the kit I received seemed to have some machining issues. The bottom of the bore was really tight leading me to believe the bore was not correct for the piston and not enough clearance was allowed for. For the heads, we still don't have the correct pictures of them for the grom. This leads me to believe there may be some production or development issues or delays and I can't seem to get any straight answers about it. I only care because I dropped a pretty substantial chunk of money a month ago to pre order the parts and I still don't have answers. If the parts aren't ready they should not be advertising or taking pre-orders. I wanted so badly for my kit to work and to give the company a good review. I think I at least deserve an explanation. So, how about it yuminashi? I don't mind being patient, but I at least want to know when the heads will be ready and if the parts will even work as advertised. I have a video of the engine running with the light bore kit. Its not good to say the least. I then put all the stock parts back on and it ran beautifully. As a matter of fact i drove it 500km all the way from münich to the Grossglockner pass with no problems, so i know i put the engine together right. I should be getting a new kit soon so i hope it will not have the same issues or ill be getting my money back and waiting for tb or someone to come out with a kit.