12/07/2026
This Mk5 Golf GTI is in with us for the full Stage 2 transformation! 🔥
The video shows the inlet valves before we started the carbon clean. As you can see, they’re heavily coated in carbon deposits, which is common on direct injection engines and can significantly affect performance, throttle response and efficiency.
The customer wasn’t happy with how the car was running and also wanted the aggressive pop and bang map removed in favour of a smoother, more refined calibration that delivers performance where it matters.
Here’s what’s being carried out:
✅ Walnut blasting carbon clean
✅ VIS high-pressure fuel pump internals
✅ RS4 pressure relief valve upgrade
✅ Boost leak diagnosis and repair
✅ Exhaust leak repair
✅ Full service
✅ Uprated clutch kit
✅ Removal of the existing pop and bang map
✅ Bespoke Stage 2 dyno calibration
Once complete, the car will leave with a custom Stage 2 map that’s designed around its hardware, delivering strong, reliable performance and smooth drivability rather than unnecessary noise.
Keep an eye on the page for the finished results, dyno figures and before-and-after videos! 💪🚗