I have about 4 bottles of this bull s**t.

Just wondering is anyone has used it and weither it actually makes a difference to performance. IMO its not going to do s**t and dont know if ill use it but has anyone tried it?

Octane booster by itself will have a neglible effect on performance.

What it allows you to do is up the BMEP of your cylinder, either via higher compression ration, or adding more turbo boost, as it acts as an anti-detonant,meaning you can have a higher BMEP before the onset of detonation.