Regardless of whether or not your state/region doesn't have emissions testing, it'* still ILLEGAL to run without a cat in the states. It'* a federal law. It carries stiff fines and penalties, and nifty little rewards for the person/shop that turns you in.
Don't waste your time at the wrecker on exhaust parts. You're just asking for trouble unless it'* from a 98 or 99. Even then, it'll have a limited life.
I suggest adding a resonator. But put a good cat back in ($60ish from www.justmagnaflow.com
) first and see how you like the sound.