OK, so I got my Stromung muffler in the mail a couple of days ago. I tried to put it on the day that I got it, but it was already dark and no flood lights. So I put it on after work today. I'm thinking it's gonna take me no more than an hour, yeahhhhhh. So for future reference the 2.5 RS's mid pipe flange is not the same as an 04 WRX. One of the bolts would line up , but not the other. So me and a buddy cut the flange off the Stromung mufflerand replaced it with the stock flange with some help of a friendly welder who worked at the hobby shop on base. So two hours and $22 later, the cost for the weld and the hourly rate for the lift, we have a JC, job complete. I realy like the way it sounds at idle and low RPM's. Its almost the same as stock, but a little deeper. And a really nice sound at WOT. N big coffe can or ricey sound, AND it still looks stock.