Love your wagon! Like I've always said, if they had offered a wagon with the 2.5L engine and suspension equal to the RS (basically, if they had always offered a 2.5TS), I probably would have gotten that over the coupe. And I would also love to do the EJ25 swap into a wagon, I think they are sexy as hell! But, to answer your question, go with the tow spoilers from the factory, the one at the top of the backglass, and the one on the bottom. Kind of subtle looking, but aggresive at the same time.