Hi , yes i have.
just today , 2014 hp4 carbon with 1600 miles, very very clean bike, 1 owner, it has a Austin racing small short decat system on ,with original headers.
so i would like to put a de cat and valve pipe on with original silencer, what do you think? or point me in the direction to buy a new pipe, other than that i will buy radiater and oil cooler guards, and i think i am sorted.
Regards bergboxer