Hey all, I have a 1999 WRX STi RA. Water has managed to get into the oil, bubbles forming in top tank, and water coming out exhaust which are all signs the head gasket is screwed. I am not a mechanic but have some mechanical knowledge - I am wanting to know of any info out there which could help me in completing this. I have heard you can do this with the engine remaining in the vehicle (by lifting it up slightly but don't know much on this) - I have some time to do this and was thinking I may do the clutch (as it is pretty crap and slipping) as well. Video's/manuals/ any kind of information would be greatly appreciated. Is there any difference in the RA engine as oppose to a standard EJ20T? Thoughts or anything would be awesome!!