i have heard its common for the s70 to eat control arms so its wise to upgrade to heavy duty ones, Matty which springs did u get for your s70 ?

have you checked the PVC ? eaither pull the dip stick up and see if any smoke or put a while surgeon glove over the oil filler cap and if it tries to blow it off then it may be blocked but if it tries to suck it in then its free. you could have a blockage

what will Koni springs and shocks do man compared to other shocks and spings ?

Hey so i was speaking to a guy who is pretty much well into his volvo's and he said don't lower the s70 as in the rear has some bushes and when lowerd it destorys them and everyone he knows who has lowerd an s70 has regretted it. is he right. apprently changing the bushes are a nightmare