Hi, My T4 was built in '92 and has an AAC 1968cc engine, as far as I know it has never had a Catalytic converter and until it failed its MOT today, (on emissions) has never been tested as if it had a CAT. The garage phoned and said that it would need a new CAT and exhaust so I went down and told them it did not have a CAT, they said they cannot give it an MOT certificate as the book says it should have a CAT. How do I prove it was never built with a CAT so I can get my van back ?