Here is my guide! BOV type: greddy type S (GEN) Tools needed:tiny alan key, rag, gloves is your keeping your hands clean (pussys) Other bits: Rag, meguiars all metal polish, autosol Time: 35min Get started. dirty grime stick to the BOV you need to undo the 6 alan key bolts that holds the head of the bov to the cylinder make sure you keep your hand down firm to stop the spring from flying off into the air and you not being able to find it again also to undo side to side (slack each bolt first) remove the top remove the spring pull out the piston dont tear the lining start your polish , i am only hanf poilishing it just to clean it up abit am sure there people who could get it brighter this will do for now pop the pistion back in spring back on clean out any grime inside the top hat clean the screws cuz lets face it you wount stick your dirty dick in a fresh clean bird would ya? screw back down holding the hat flat and screwing back down side to side sorted ;) its up on TGTT so drop us some rep if you read it there to