well i just fell like i got bummed by my local dealer.... anyho
finis 6617379 - hard pipe hose from crank case breather to airbox £39.46
finis 6617381 - crankcase breather vaklve assembly £7.08
finis 6617380 - connecting hose for crank case breather £6.82
finis 1661014 - crankcase breather £26.18
finis 6617376 - hard pipe from inlet to breather, a staggering £71.99 for a 3 inch pipe!!!