Courtenay Sport Stage 4 Tuning Package Astra G Z20LET
Tech2 Full Diagnostic Check, Factory Base Software Upgrade as required, Exclusive Courtenay Sport Stage 4 Software upgrade, High Flow Lower Front Mounted Intercooler*, VXR High Flow Injectors, VXR (Z20LEH) turbocharger, Uprated Actuator and Stainless Steel Bracket, Oil and Filter Change with Fully Synthetic oil (API:SM). The turbo, combined with our software, is the key to increasing power beyond the 260 bhp mark and producing a strong torque curve. Higher flow injectors ensure enough fuel is available mid range to ensure the engine does not run lean, Software customising whilst on our rolling road optimising fuelling, full boost and ignition maps, Full Power and Torque Graph Print Outs.
*Fitted Price for our Stage 3 package on Astra SRi/GSi and Coupe models with GSi front bumper. Additional cost of £110 charged for Coupe and Cabrio models with factory bumper, due to the additional time needed for fitment, which includes the bumper reworking on these models to allow the bumper to clear the intercooler.
80mm Air Flow Meter Upgrade recommended.
Requires a FULL 76mm turbo back exhaust for best results. Uprated Clutch Recommended.
Increases to 285-295bhp (exhaust dependent). 300lb ft torque. (320+ lb ft torque high torque map)