Lemme guess...RT/10, right? Welcome to the world of Gen 1 engine, Gen 2 suspension. The only way to do it is to have the car jacked up with the wheel suspended in the air. Doing an oil change over a "oil pit" won't work, as there won't be enough clearance to swap the filters as you mentioned. With the wheel suspended, the filter slips out through the suspension, but it can be a PITA to find the right spot. The new filter slips in the same spot. Next time, have a plastic bag with you, this way while you're fighting with the filter, all the oil can fall in the bag instead of on you and the frame. I can't remember exactly without looking under my car, but the spot where the filter slips out is close to where it screws on the car (right near the wheel). If you need any more help, PM me and I'll climb under my car with you on the phone and give you a more exact answer of where the "sweet spot" is for getting the filters off/on.