plenum Q's
 

i just checked my plenum and i could see alot of oily residue at the bottom. just wanted to know where is the best place to buy them and what kind of job am i getting in to. thanks for any help

Hughes for the parts.

It can be easy, or, a real bear. Just depends on how many bolts you break. :D and what kind of equipment you have to deal with it. LOTS of info on this around the forums.

what exactly is it that will need replaced a gasket or the whole plenum

sorry to bash, but do a search there are plenty of posts about this with pictures and all required need to know info.

^ couldn't agree more...A little goes a looong way!