The CTS Turbo high-flow catalytic converter for the first-generation Audi TT (MK1/8N) 225Q improves exhaust gas flow compared with the standard downpipe, which can restrict performance, especially on vehicles with engine software modifications.
It is manufactured from mandrel-bent 3.0-inch T304 stainless steel pipes. The modular design simplifies catalytic converter installation, while the smooth transitions enable more efficient exhaust gas flow. The kit includes a CNC-machined turbo outlet flange (downpipe), T304 stainless steel flanges, stainless steel clamps and an O2 sensor bung.
Important: the product is not suitable for convertibles.
Product details
- 3.0-inch seamless T304 stainless steel pipes
- T304 stainless steel flanges
- 100% TIG-welded
- T304 stainless steel O2 sensor bung
- Stainless steel clamps
- More pronounced exhaust sound
- Weight: 13.61 kg
Suitable engine tuning software is required to remove the check engine light (CEL), which may appear after installation. Stage 2 software is required to prevent the warning light.
Suitable for: Audi TT I (8N).
Approval
This part has no TÜV certification (ABE, TTG or Teilegutachten).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Audi TT | — | 2001–2006 | — |
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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