I had my ECU flashed over winter and now have the Woolwich Racing code. I had mine done by mail-in to S-Tech Performance, the same as @captainscarlet. Whilst talking to Simon, he said that the Scorpion baffle is very restrictive. So much so that with the baffle in, the bike makes less power than standard as it cannot flow the exhaust gas fast enough. He has raised this with Scorpion, but they have designed it this way to make it EC compliant (homologated).  His suggestion was to drill some