Leaving out all the childish remarks (and god knows how YAMABEN felt when he posted the first 450 cam mod post) can anyone with any real knowledge of octane boosters or additives chuck their two pence worth in please. Constructive (hopefully) evidence would be helpful. Anyone up for discussing the pro’s and cons of using these. All I have is a group of peers who race and use it, and swear by it and our dyno results. I under stand it oxygenates the fuel, creating a faster more powerful burn – but the results we’ve had back off the dyno are inconceivable. Our increase on a 2 year old Supermoto YZ426 was 12 – 14hp. The bike ran fine (well bloody well actually) all race meeting (this weekend gone) despite comments about holed pistons…. If this so good then there must be others who use it too – I cannot believe that in such a widely read forum no-one has….? Fast forward is US manufactured, and imported to the UK under licence. Its not NOS as some have posted. Technicians and educated opinions more than welcome & I’m sure this web site wasn’t built on sarky childish comments like some indicate.