So I thought I'd share a few lessons from changing my exhaust. I ordered a full system from screaming demon and got it posted over, it arrived and I was keen to get to work on swapping over from the stock exhaust to my new ixil system. I was hoping the package might include some new gaskets. Lesson 1. You need to order gaskets separately. Anyway I though it'll be right, its a new bike the existing gaskets will be alright, only thing is that cb650 has copper crusher gaskets so they were never going to work with a different exhaust. So of course I got it all fitted up fired her up and shore enough it was leaking. Lesson 2. you need new gaskets. So I did what any young bloke would do and tightened it up a bit. I don't have a torque wrench but I thought, I'll be able to feel when I'm going to hard, and I was only using a small ratchet. Shore enough I felt it when I snapped the stud off. Lesson 3 don't over torque your exhaust! Anyway so not wanting to go down to Honda with the bike and get the parts or get them to fix it because I was embarrassed I jumped online and ordered a new stud, and a spare, as well as a set of new gaskets. Then I had a 3 week wait for the studs to come from Honda. Anyway got the stud today, pulled the exhaust off, drilled the old stud and pulled it out with an easy out I got from supercheap. It all went pretty smoothly and I had the exhaust back on with no leaks in under 3 hours. Lesson 4 do it right, do it once, taking shortcuts is never a good idea. The first time I did it I also took off a few of the fairings as shown in the photos. that was also a waste of time, it didn't make access to the nuts any easier. I didn't do it the second time!