Funny you should mention S50 cams M-technik-3...
S50 cams.
To keep things simple I am going to use the exact mods I had on the S50 on the M52 and add S50 cams to the M52.
S50 cams installed with shorty headers.
New upper chain, guides and tensioner before a rebuilt vanos went on.
S50/M50 oil filter housing.