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hi everyone this is my first post and would like some advice from anyone who has already tried this mod . Iam trying to find out if changing the front cats to 100 cell will give any warning lights and if so would 200 front cell cats be better , and to pass a uk mot emissions would 200 cell cats get through or would you need to have 100 cell secondary cats put in ?
I would be greatful for any advice on the best mix of cats for power gains but will pass an mot test
Many thanks in advance
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