The CTS Turbo atmospheric BOV kit (Blow-Off Valve) for the EVO4 engine in the MK8 Golf GTI is made from machined T6061 aluminium. It is compatible with the factory electronics, while installation is plug-and-play, with no need to extend the wiring and without triggering the engine warning light.
Compared with the factory plastic valve, which can develop a torn diaphragm, cracks in the plastic and electrical faults, the kit features a robust piston design. It allows easy installation and servicing with improved reliability, while also providing a more pronounced turbocharger sound.
The compact design is slightly shorter than the original part, so it can also be installed without difficulty in the limited space of the engine bay.
Features
- Made from machined T6061 aluminium
- Black anodised Stealth finish
- Full compatibility with the original electronics
- Serviceable piston design
- No additional wiring required
- Significantly improved reliability compared with the original part
- Compact design for installation in limited space
- Weight: 1.81 kg
Suitable for: VW Golf VIII (CD1).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Volkswagen GTI | — | 2022–2024 | — |
Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.

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