can u guys plz tell me what the best oct booster is for our cars

 

why do you want an octane booster? What gains do you think you will make? Just curious...because higher octane does not equate to more power. The higher the octane, the greater the resistance to engine knock, and that's about it.
The F-Type engines are specified for 91 octane, although the ECU can compensate in most circumstances for a lower octane gasoline. Should you use a 94 octane fuel in your car? Well, the principal effect of that would be a thinner wallet. Would you notice any increase in performance? Possibly subjectively (we tend to see, feel, or taste what we want to see, feel or taste). But objectively? Highly unlikely.

 

If you can't get 91 AKI where you're at, sure maybe add an octane booster, but otherwise as mentioned above, it's a waste of money.