Right, yes it fits a treat, 2 problems

1. The hanger on your end can won't match the footpeg position, so you'll need to do something about that. Mine had a hanging strap, so I just ground the rivet and moved it. One day, I might reattach the strap to the exhaust properly, but probably not.

2. It may be the exhaust I got, but the bottom end, where the four pipes go into one collector box, is a bit bulkier and the fairings underneath wouldn't quite meet in the middle towards the back. As they were being held in place by nylon tie grips anyway, I simply lengthened those and we'll see how we get on.

So if you want to keep your ZX4 on the road and don't mind some mucking about, it's a winner

Thanks for the help guys. Now you can me!