crisis39 wrote:
Hello again, I need a new exhaust for my 125cc ET4 and am a complete novice. I think I have narrowed it down to a Sitoplus or a Scorpion Stainless Steel one. Any advice on which exhaust and I think I should be able to do the job myself from what I have read in Haynes

Run far, far away from the Scorpion exhaust. They will not last. They are awful exhausts. One dealer told me that they do not answer any warranty issues either (that is why this particular dealer stopped carrying them).
I switched from the Scorpion to the Sito Plus and I am quite happy with it. It is much sturdier.