Only difference with mine I have the air box holes.

I took Kevs fuel mod off and bought a secondhand PC as much out of curiosity I found the surging you get is a like tooth when you have it can't stop poking and prodding!! I found the trick was to ride either on or off the throttle it didn't bother me all that much,but not something I think about at all now.

Re the PC just like everything else in life you only get what you pay for although I do run it with Akra's which having changed pipes not only on my XT but other bikes they are the best by the proverbial mile.