10 minutes? you having a laugh!!!! also, you DO NOT need a cat for mot. there is no uk equivalant, therefore you only need to pass the fast idle test. and if you fail that, theres something wrong with your car. IF you get a fail, you need to point out that the car is an import and has a different engine, because noob MOT places use the 4efe as a guide. remember, im never wrong ;)