Yup, it is one of Eric's kits (unless there is another Eric Gorr out there), according to the previous owner it was for low-end and increased pull throughout RPM. Was installed August of last year and had a power valve/piston clearance problem, so Eric gave him a new piston and cylinder. It also has the FMF SST pipe, I'll know how it runs after picking up the bike next week. Funny thing is the dude can pull outrageous gearing...he is running a 15/50, so the jug must be pumping some ponies out.