Stock will be fine. You will need to support the engine by jacking up from below. Then remove the bolts from the engine/transmission and the sub frame. The trans cooler lines run along there. Might get a little tight working in there. Oh ya, you will have to remove the bottom splash guard.
I did mine last weekend and one thing I ran into- I had to remove the bracket bolted to the trans- the one w/ the 3 bolts. I could not get it out, lacked a 1/4" more- other than that- it'* a 5 min job.
Car drove amazingly better too- I really noticed the difference. Engine isn't flopping around anymore- nice feeling.