The CTS Turbo intake system for the VW 1.8T MK4 uses the original air inlet in combination with a closed airbox that efficiently directs cold air into the intake system. The air then flows through a high-flow conical air filter with an inverted conical design for more efficient airflow into the engine.
The one-piece, CNC-bent aluminium heat shield with powder coating deflects heat and enables an uninterrupted supply of cold air to the engine. The system can provide a power increase of 6–9 hp, while all included parts are matched to each other to increase power and torque throughout the rev range and produce a more pronounced, race-inspired sound.
Product details:
- CNC-bent aluminium heat shield with powder coating
- Integrated bracket for the SAI breather connection
- Washable and reusable air filter with an inverted conical design
- Closed airbox with a rubberised edge
- Brackets to prevent rattling when the engine moves under load
- Power increase of 6–9 hp
- Weight: 3.63 kg
Not suitable for the Audi 225 HP.
Suitable for: Audi TT I (8N), VW Golf IV (1J), VW Jetta IV (1J).
Approval
This part has no TÜV certification (ABE, TTG or Teilegutachten).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Audi TT | — | 2000–2006 | — |
| Volkswagen GTI | — | 1999–2006 | — |
| Volkswagen JETTA | — | 1999–2005 | — |
| Volkswagen JETTA GLI | — | 1999–2005 | — |
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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