1Jwunder Is that 300kw at the wheels or flywheel? Stock injectors, stock pump and stock CT12A Turbos have produced 225rwkw in a number of cars. At 220rwkw I've seem injectors at 70% duty cycle negating the need to whack on 440cc replacements and fuel pressure was normal. I'm told that by 250rwkw the ignition system needs upgrading/improvement to cope and 440cc injectors are then required for safety/reliability.