How do they blow in the first place, is it because the clamp is not on right? I have just had it back off again and put it back on the way I think it should be. just looks the same as the first time I did it lol. All you need to do is make sure the clamp round the top and bottom are on correct, over both parts of the pre cat. The pre cat to the turbo is a straight fit, it can't go on wrong
