Category: Vauxhall Tuning

500bhp Astra VXR GTx3076R

Courtenay Sport mapped Garrett Conversion. The brief was to achieve 500bhp from the mapping and the customer had prepared the car with a Garrett GTx3076 turbo, tubular manifold, 76mm exhaust, 90mm air flow meter, 680cc injectors, High Flow Inlet Inlet Manifold, Courtenay Klasen cams, Forge Race Intercooler, Mocal Oil Cooler, Sachs Uprated Clutch and Uprated […]

Piper Exhaust for Corsa VXR Nürburgring

Working closely with Piper Exhausts, a 76mm stainless steel tailbox has been developed for the Corsa VXR Nürburgring. Added to the existing 76mm system for Corsa VXR, a full 76mm system is now available for this car, to help release maximum performance. As with the current system, the first main cat is removed and options […]

Milltek Exhaust for Corsa VXR Nürburgring

After the announcement by Milltek Sport of a 70mm twin outlet cat back exhaust system for the Corsa VXR Nürburgring, Courtenay Sport are pleased to confirm that a full 70mm (2.75 inch) stainless steel system is now available. The system removes the existing Euro V compliant first catalyst (pre-cat) replacing it with straight through pipework, […]

Map Optimisation and Set Up Pays Off – Astra VXR

Another question we are constantly being asked is about remapping and correct set up and why this is better than a hand held unit. Many people like the convenience of installing a map from a hand held unit (and are often ‘sold’ the same results as bespoke mapping, which invariably is not the case), but […]

The Benefits of a Good Exhaust System – Astra VXR

On more than one occasion we have extolled the virtues of a good, free flowing 76mm sports exhaust system for Astra VXR to get the best performance results out of remapping correctly. Well here is another classic example…….. The car in question is an Astra VXR 2.0 Turbo which was fitted with a Stage 1.5 […]

Astra VXR Garrett GT3071 Video

Courtenay Sport Garrett Conversion. The brief was to achieve 420bhp with Garrett GT3071 turbo, tubular manifold, 76mm exhaust, 80mm air flow meter, 630cc injectors and Courtenay Sport Full Height Intercooler. The 80mm Astra VXR is maxxed out at around 420bhp so the achieved figure was the best achievable using the given components.

Stage 4 Astra & Zafira VXR with K06 & Inlet Manifold

Our Stage 4 Conversion for Astra & Zafira VXR (Z20LEH) builds on the Stage 3 hardware components that are: . Full Exhaust System, preferably 3” (76mm) throughout . Large Intercooler To this we add the following: . K06 Hybrid Turbo . Klasen High Flow Inlet Manifold . Stage 4 Software With our Stage 4 we […]

New V Band Cast Manifold Astra VXR Conversion

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. […]

New V Band Cast Manifold VX220 Turbo Conversion

Following the introduction of our V Band Cast Manifold with external wastegate, here is an example of afinished conversions and graph on a VX220 Turbo. The manifold has been flow tested to 600bhp and the Tial V Band flanges are much more secure and allow for easier turbo fitment. The VX220Turbo with this V Band […]

Revised Astra VXR Intercooler

We have recently revised our Astra and Zafria VXR intercooler pipework, after requests from customers, to improve upon an already excellent design. From its existing design, the complete kit has been tested and proven to in excess of 420bhp (the intercooler core is good for 600bhp) with the intercooler utilising 60mm pipework from the turbo (the moment we can […]

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