its pretty obvious i want the yellow one! i just would'nt mind more rpm's out of my engine!! although trying for economy right now so only using less than half i have now!
they are basically saying that changing gear at the higher rate puts the revs into the right part of the rev range for power. the normal one might be better at the start but once in vtec range and changing up through the gears the 11k one is so much better.