If it's just been done why don't you take it back and let them deal with it?

Long time since I last had to worry about the UK MOT, but the last time, IIRC, the tester told me (in passing, because I'd done a DIY repair but hadn't used a bandage) that they were no longer approved.

People with more r4ecent experience / knowledge will be able to confirm or deny.

That's a good idea but the exhaust itself is in really good condition, there are no rust holes or anything its just that slip joint isn't sealing fully. Might ring the garage up and see if it would pass with the bandage.

I pushed it onto the pipe as far as it can go. I will give it another try but if I have no luck, can I just wrap the joint in gun gum and bandage it too give it the final seal? The blow is only very sloght and can barely feel it when it's running but I can hear that crackling/f***ing noise from the join and water slowly drips from it.

Brilliant, do I have too use a bean tin or can I just suse the bandage and be done with it?

Just had a look and there's not much room on the pipe for one of the joining sleeves. I'm thinking of applying some gun gum paste and wrapping it with an empty can, preferably a baked bean or soup can because they are thicker and then wrapping it with the holts repair bandage and then clamping it. Like I say, the blow is very minor and it's only at a certain spot so if this fixes it then it won't cost me much at all.

Yeah, the pipe size is correct and it all looks round and fits tightly. It's just blowing at one small point. I'm going too try the bandage and tin method and go from there.

I wonder if either if your exhaust joints are slightly ovalised? One option is to shim at the blow point using cut to shape steel shim stock and inexpensive silicone sealant. The stuff for kitchens / bathrooms etc. The budget stuff is fine. Don't worry about how good this will be as the sealant is heat resistent to 250c and works well with a shim. I have had to do this on at least three motorbike exhausts.

I will try the exhaust bandage and baked bean can first and if that doesn't sort it then I will get a garage too have a look. Its just the buzzing noise that is annoying. You can't feel that much air coming out of the leak but you can hear it buzzing /crackling at idle. Must be a very small gap. Thank you for the suggestions. Can't be bothered stripping it all down again on Jack stands so I will see how this goes ??

Some exhausts can be a pain if the joint isn`t made correctly, and is often quicker and easier to get a garage to sort it as they have the sealant and parts on hand, imo nothing worse than an exhaust that wont seal properly, they used to be a pet hate of mine as they either seal/connect with ease or they don`t....

Rang a garage too ask quickly and they said too wrap it in a bit of stainless steel wool, then some steel (baked bean can) and use exhaust paste. They said as long as it's sealed alright then it will pass the MOT. Will give this a try first and then if that doesn't work then I will get it into a garage

steel wool wont help, need to smother in paste around leak then put can around and clamp up, wait to dry off a bit, then see if it worked

Yeah, I will give this a go first and see. If its a load of rubbish then will have too get it sorted with the pipe expander. The leak is minor tbh so it's not like the whole join is leaking all the way round. Just annoying because the exhaust is so loud under acceleration from the blowing