B4 legacy info

B4Dar · 2011-09-07T11:33:01+00:00

Iv got myself a legacy B4 last week, but i know very little about them as this is my first subaru. So im just trying to do some research on them at the moment. Im wondering what sort of performance upgrades work well on them. How much of an effect does the likes of decats, front mounted intercoolers, etc. have. Im just basically trying to find out is there any basic upgrades worth while doing. So far it has a cat back exhaust system. But if there were any other ways to release the few...