The Courtenay Sport Blog

Astra VXR with V Band Cast Manifold, External Wastegate, Garrett GT3076 Turbo, Courtenay Sport Full Height VXR Intercooler, Courtenay Sport High FLow Inlet Manifold, Full 76mm Exhaust System, 90mm Air Flow Meter, Steel Road, Factory ECU (Bosch 7.6.3 management) bespoke mapped by Courtenay Sport

For this conversion using our new V Band Cast Manifold the brief from our customer was as close to 500bhp as possible but with usable power. We opted for a Garrett GT3076 turbocharger. The car also has our full height VXR intercooler, steel rods, Courtenay Sport High Flow Inlet Manifold and 76mm full exhaust system.

V Band Cast Manifold Astra VXR

V Band Cast Manifold with GT3076

And finally the all important Power Graph:

Astra VXR Power Graph