Pumaspeed do seem to mark up their prices allot, i have purchased the CFM Underdrive pulley kit, CFM short shifter, CFM Vernier Cam pulley and Clutchmasters Kit all through CFM and not pumaspeed. You do have to wait a few weeks, you might have to Pay customs charges etc but it still works out cheaper. I think i paid £800 in the end for the kit to be delivered to my door. Ford wanted that much for standard crappy parts. Well worth it. Helix do a kit now for the ST170 also but this is £1200 and is a paddle type clutch which is a bit harsh for the daily drive. TTV also do a fly wheel but beware the one they do is for the smaller earlier clutch friction plate and these tend to slip after 10K, they do not yet do a suitable clutch and fly for the later 240mm friction plate