That's normal Simon. They do get very hot very quickly and stay hot for a very long time afterwards. I know from a nasty burn I got from swapping an oxygen sensor once...Mandrake wrote: One thing I've always noticed about this car is the exhaust system gets REALLY hot, I'm not sure if its the exhaust header/downpipe before the cat, the cat itself or both, but even after a very short drive the moment you switch the engine off there's a loud "tick tick tick" of the exhaust cooling down that goes on for a few minutes...and it still does it. Could it be the sound of the cat getting really hot working really hard trying to clean up un-burnt HC ?
As I understand it cats have to be very hot to work effectively anyway...
Mine tick like ten bob watches so no worries there at all...