With they make your car faster? No, not without a new turbo and a tune.
Those are very large injectors. Those are not stock 9000 Aero injectors and are only used in cars with upgraded turbochargers. (I have them in my car, and I'm running a GT30 turbo) Without a new tune, or some serious increase in airflow, you'll run pig rich throughout the entire rev range and actually hurt power.
hi, thanks for the reply.im thinking of running a gt28rs turbo so this is why i was making sure about the injectors.does anyone know where i can get a gt28rs in the uk for a reasonable price.i noticed there a lot cheaper in the US but import tax wouldn't make it worth while.