WGM Astra J VXR Stage 4 Engine Tuning

£4,000.00 Inc Vat

SKU: astraj4 Categories: , Tag:


WGM Stage 4 Astra J VXR Tuning

For more information on our Tuning:

Stage 4 Package Consists of:

    • ECU Software Upgrade Optimizing Boost / AFR and Ignition Timing
    • Rolling Road Session
    • Before and After Printouts
    • WGM Spec Hybrid Turbocharger
    • Turbosmart Actuator
    • 3″ Catless Downpipe

    • Airtec Induction Kit
    • Airtec Intercooler Kit
    • Uprated Iridium Spark Plugs
    • Turbo Fitting Kit
    • Labour

​With Optional Extra’s Consisting of:

    • Decat / Sports Cat Section
    • Piper Cat Back Exhaust System
    • Pro Alloy Uprated Water Radiator
    • JS Performance Coolant Hoses
    • Forged Internals
    • Uprated Clutch

Standard Power output: 276HP 295TQ as Quoted by Manufacture

Expected Power Output after Tuning: 350-380HP 390-410TQ

Please Note:

    • Results are based on running High Octane Fuel, Either Tesco 99 or Shell Nitro, any other fuel is deemed substandard, and Results will be lower.
    • Results vary Engine to Engine – Expected Results are given as a guide only 
    • Any Running issues are required to be Fixed before tuning – additional work required or Diagnostic work required is chargeable  
    • Uprated Water Radiator is recommended for Fast Road / Track usage with increased power


  • 3″ Free-flowing Cat-back system is required for optimal performance 

Additional information

Weight 0.00000000 kg
Hose Colour

Black, Blue, Green, Orange, Pink, Purple, Red, Stealth Grey, White, Yellow

Metal Pipe Finish

Black , Polished / Brushed