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Hi,
You can change the plugs in as little as 20 min. You should use a torque wrench to insure that the plugs are properly sealed and indexed. Also, Anti-Sieze is unecessary and you run the risk of overtorqueing the plugs and stripping the Head (aluminum).
As mentioned, lift one side, slide underneath (I use a creeper). Loosen and the Coilpak screws at one time, pull the Coilpaks after marking them w/ paint pen or tape to avoid mixing them up. Pull all 3 Coilpaks (pull and slight twist). Untorque all 3 plugs with ratchet handle - not torque wrench. Hand loosen all 3 plugs and remove marking them (Cylinder #) for later inspection.
Check Gap on all new PLugs and adjust as necessary - they come pre-gapped but are notorious for being off which will affect a smooth idle. Check Spark Plug Tubes w/ finger to insure no Oil leaks. Insert and hand tighten all 3 plugs. Torque plugs to spec in 2 stages.
Insert Coilpaks on plugs, following the labels. Insert Coilpak screws on all Coilpaks - hand tighten. Torque Coilpak screws in 2 stages. Go to other side - repeat. Hope this helps...
Happy Motoring!... Jim'99
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