Foama, have you stuck a magnet to the exhaust pipe to see if its really not stainless? Stainless exhausts do rust, just not as quickly as others. I'd be interested in someone doing this as I'd be pretty surprised in any OEM car leaving a factory without a stainless exhaust. Here in the salty areas a mild steel exhaust will last 2 years before rusting through. I haven't heard of any rust issues with Mirages and its been two years...