Im not sure, I thought the blue had the silver engine anyway?
Probaby sat in the showroom for 4 years
After using it now for a couple of days I have some updates..
Its so so smooth now, That was my main issue with this bike originally, Amazed
Hot starting is much better.
Idle is loads better.
It has much more midrange power and more top end as well, Once it hits about 7-8k hold on.
I like the sound of the airfilter
Worth every penny in all honesty, Probably the best thing thats been done to the bike along with the multigauge.