Hi guys, After my Statesman v6 coming and going from the exhaust shop, they have given up on it and put a stock standard exhaust back on it. Problem is feels like I'm wringing its neck. Only drove 15km and it over heated, displayed the warning messages and then I lost ability to accelerate and waited on side of road until it cooled down enough for me to get home. I've never experienced this before. While I was waiting, I called exhaust place and told them what happened. They say it has nothing to do with them. That the exhaust system has nothing to do with the coolant system. The original system had both catalytic converters empty of the ceramic block. Perhaps that was needed to keep it from over heating. Any thoughts?