Originally posted by Matt Monson
Someone correct me if I am wrong, but I was under the impression that the WRX downpipe does not end up in the same place as an RS cat-back, and as such you would not be able to use any catback on the car after the swap. You will be able to use the axle-back muffler, but you will need to adjust the length of the mid-pipe to mate to the DP...
Ding ding ding!!! We have a winnAR!
The axle back fits with no issues at all, it's everything else you'll have to swap out. So, not cat-back for you my friend. If youwant a better sound right now, you can ONLY swap out the muffler...seeing as how you don't want to do it over again later.