Just did my first oil change (actual first oil change was done by the dealership) and have some feedback for owners of the I4.
Steps are as follows:
Remove plastic splash shields. There are two to be removed. One covers the oil pan and the other the oil filter access area. The oil pan shield is a simple twist to remove. The oil filter shield has two 10mm bolts that need to be removed.
Drain oil from oil pan as you would normally.
Oil Filter removal requires that you remove the oil filter drain plug with an allen wrench. Note that this drain plug has a rubber gasket / O Ring that must be replaced.
Removing the plastic oil filter housing wasn't that difficult. I used a strap wrench purchased a Home Depot in the plumbing section to get a grip on that plastic housing. It applies sufficient grip to turn and loosen the housing without crushing it. Once loosened, I used a standard open ended oil filter wrench to further loosen the housing as it was still too tight to turn by hand. Note that this housing also has a rubber gasket / O Ring that must be replaced. The ones from the dealership were a whitish color and easy to spot but the ones that came with my FRAM filter are black and might be missed against the black plastic of the housing.
Assembly is easy as everything goes back on a lot easier than it came off.
My first time and it took me all of five minutes to get the filter off thanks to the info on this site. Things sounded a lot worse than they actually were. It wasn't any more messy than a typical oil filter and in fact, with the drain plug at the bottom of the housing, it wasn't messy at all.