If I were You do it all ,its located under the intake kind of a pain .It will be worth it!!! the v8 and 6cyls are alot different the v8 are located on the back on some and the front on some n62,m62?Your 3.0 is a lot easier to get at . I just noticed ur up in Canada there is a cold weather one for u it has insulation around it kinda like a blanket of foam around it ,hope that helps!