I don't know about the 2.3, but the 2.0 is a breeze (once you get the shroud off the bottom of the car). This is my 12th car since I was 16, and this is the only 4-cylinder I've owned that has a vertically mounted oil filter - it makes life so much easier. (My Hondas' oil filters were mounted on the back side of the engine, up against the firewall). A little trick for the do-it-yourselfers - fill your new filter up with oil before you put it on....it reduces the amount of time it takes for your engine to get oil circulating at startup. (impossible with a horizontally mounted filter).