So I bought a Protege5 yesterday and 10 minutes ago I ordered an Racing Beat axle back muffler from a protege mp3 off ebay. It looks like the only modification needed will be shortening the pipe between the muffler and the tip. I have access to a mig welder that is set up for mild steel. What I am needing to know is if this exhaust is stainless steel or is it just chrome plated. The college weld shop I have access to doesn't run trimix and doesn't have any different wire, so if it's stainless I will just look like a dork with the tip sticking 4-5" out the back of my P5.