Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I have DSS 341's on my K1 The same pipe is close to the oil filter as yours and they just clear the front engine mount bolts and just clear the brake peddle. I have always struggled to get the two right hand pipes on until today when I realised my rear mount had been bent. Ten minutes with a block of wood and scissor jack soon had the frame straight again and they now go on with ease.