MERKINATOR

I just got a 1996 Subaru Legacy Outback 5spd because its the cheapest subies I can get but it seems like there are not much performance parts for it I cant even find an exhaust system or cold air intake . Will local muffler shops put in a custom exhaust for me ? I dont know what to do . I went on cobbstuning website and they only have the legacys parts from 2005+