How much would a new muffler be for a 1999 Mitsubishi Lancer GLi?

I have just bought a second hand 1999 Mitsubishi Lancer GLi. I found out that i need a new muffler. It already has a sports exhaust, so i would like to keep it. So i would like to know how much a new muffler would be in total, including installation.|||Autobarn can get exhaust parts, Redback is a good brand (i have a redback system on my car (NL fairlane)) they do a sports mufflers and such. you would be looking at maybe 120ish would be my bet. installation you could get done by a mechanic, i would guess around the 100 mark also, easy job to do as they all bolt together so if you where mechanically minded you could do it easy. do NOT get a cannon, they sound shiit, they are like a very long fart. awful noise they make, it doesn't have a note just a noise.