At power levels over 600bhp the standard fuel injectors will be at 100% duty so the stage 4 kit features our larger 1,100cc injectors to ensure the engine receives the correct amount of fuel. These Bosch Motorsport based injectors have a superb spray pattern so fuel consumption and driveability are as good, if not better, than the standard OEM 570cc injectors. These are the same injectors we use in our 800bhp conversions.
Like the Stage 3 upgrade it also features the Milltek Y-pipe, exhaust system, large bore intake kit and a new ECU calibration for the larger injectors.
The Stage 4 Power upgrade includes:
The Stage 4 package costs £4,249 fitted inc. VAT