Courtenay Sport Stage 4 Tuning Package Astra H VXR
Exclusive Courtenay Sport Stage 4 Upgrade.
Full Piper Turbo Back 76mm (3") Stainless Steel Sports Exhaust System comprising of a turbo downpipe with pre-cat removed, Hi Flow Motorsport cat and Cat Back Twin Silenced System plus our Courtenay Sport Extra Large VXRacing High Flow Front Mounted Intercooler manufactured in England for us by Pro Alloy Motorsport, K06 Hybrid Turbo, Uprated CTS Actuator, Turbo Gaskets, Studs and Nuts, oil and filter change, High Flow Inlet Manifold, 4mm Thermal Inlet Gasket, Studs and Nuts and ECU Remaping with Software customising whilst on our rolling road optimising fuelling, full boost and ignition maps. Full Power and Torque Graph Print Outs.
Note: Steel rods required for maximum power gains for safety and strength with shims and retainers fitted in the head - from £1650 fitted. Allows the engine to be safely revved to 7,600 rpm without risk of valve float.
Increase 90 - 95 bhp
e.g. 240 becomes 330-340bhp (Max 320bhp on 70mm Exhaust or engine without steel rods)
Approx 340+ lb ft torque
This package gives big power and torque increases through the mid range and at the top end with the removal of the factory inlet manifold restriction.
£5100 Fitted using Twin Silenced Exhaust including Rolling Road Set Up
£5040 Fitted using Single Silenced Exhaust including Rolling Road Set Up
For Astra VXR cars already fitted with a full 76mm sports exhaust system - £3830 Fitted including Rolling Road Set Up
Note: 76mm exhaust required for Stage 4