I took my car to a local mechanic about the oil pressure thing, and he just kinda nodded that away but when he was looking at the engine.. he said that is 95% possible that it still has factory plugs/wires... and later that day I opened up my air induction to find a non-see-thru black air filter... as in dirty black. oh, and my car has 144,500 miles... is it possible to still have factory plugs/wires ? I proceeded to buy a K&N and afterwards I noticed my Oil pressure gauge is reading fully on the N and some on the O.... an improvement from barely on the N.... so my question would sort of be.... why would a change in air filter up the oil pressure, and I obviously need new plugs/wires but is that going to up the pressure as well ?? I'm a little stumped here.