I recently got a 96 cobra and I has a few questions I hope you guys can help me with. The temp gauge never really stays in one spot. It's not that bad when the air is off, but when it's on it runs in the AL of the temp gauge. I would think this is bad since the car has an aluminum block and heads. Do all cobra's do this? Can a coolant flush and new thermosat fix this, or is there more to it? I was also considering a O/R h-pipe. I'm pretty sure it will set off the check engine light. Do you have to use mil eliminators or will it cause problems. Any info would be helpfull. Thanks.