Exhaust Mods for 95 Eclipse

I have a 95 GS-T. I recently bought a 3" down-pipe with a cat elimnator. My question is, im bolting it on my exsisting exhaust system.... will this create backpressure or any unwanted problems? Or, will this even fit?

There is no such thing as unwanted backpressure on a turbo DSM. The more flow the better. Best exhaust is no exhaust. As to if it will bolt up, you probably need to talk to a vendor and see if you can get a reducer from your downpipe to catback. Or just buy a performance catback too.