First three look like they could be the octane jumper plug - although I'm not sure. Seeing as it is covered - I would think you should leave it that way and clip to something out of the way.

The last plug is the rear, lower, O2 sensor. It should be clipped on the trans so it's out of the path of water and road debris.

NOTE: in the future make your pics half the size - they are crazy big!

2000 SVT Turbo 295hp/269ftlb@12psi #1 for Bendix Brakes Kits! Knuckles rebuilt w/new bearings $55 AUSSIE ENDLINKS $70 Gutted pre-cats $80/set A lack of planning on your part does not constitute an emergency on mine!