Yes, the Legacy has 3 cats (one for each cylinder bank and then one where the pipes meet in the middle). They fabricated a pipe from the third cat back to the backboxes. The pipe is in a Y shape if you can imagine it. To build, fit and fit my supplied backboxes was £300. H&S wanted £360 for the part alone. Just beware of AAS that it takes bloody ages to get a slot for the work and you have to pay a deposit up-front (20%). Work is excellent though.