Chummy exhaust

[Tony Griffiths]

Hi, John. First, measure the diameter and length of yours and the outside diameter of its inlet pipe. I have heard stories of the downpipe and silencer inlet pipes being the same diameter and so having to be joined by an oversleeve. The short curved outlet pipe will almost certainly have to be fabricated. It might be that your local exhaust stockist will have something and able to add an outlet pipe. I've no experience with them, but Hawleys in Sheffield might be able to help:
https://www.hawleystyres.co.uk/exhausts    
I've never managed to find a snap-into-place-fit-and-forget A7 silencer; all have needed modifying and mucking about with.