CTS Turbo MQB VW Tiguan and Audi Q3 AWD 1.8T/2.0T High-Flow Cat

Performance Downpipe with High-Flow Cat – Fits MK2 VW Tiguan & Audi Q3 AWD (1.8T/2.0T)Upgrade your exhaust system and unlock your car’s true potential with this 3.5" Stainless Steel High-Flow Catted Downpipe. Designed specifically for the MK2 VW Tiguan and Audi Q3 AWD (MQB platform), this performance downpipe is a direct replacement for the restrictive factory unit, which limits power — especially after ECU tuning.

Engineered for performance and sound, this downpipe improves exhaust flow, increases horsepower, and delivers a more aggressive tone without unwanted drone — even when paired with the stock exhaust.

Key Features:

• Made from T304 seamless stainless steel for maximum durability
• CNC machined downpipe flange for precise fitment
• Mandrel-bent 3.5" to 3.0" tubing for smooth airflow and reduced backpressure
• Modular design for easy catalytic converter installation
• 100% TIG welded construction
• Integrated T304 stainless steel O2 sensor bung
• Includes Torca Accuseal stainless steel clamps for leak-free installation
• Enhanced exhaust sound with no cabin drone

Vehicle Fitment:

• VW Tiguan (2017–Present) – 1.8T / 2.0T AWD (4Motion)
• Audi Q3 (2019–Present) – 1.8T / 2.0T AWD (4Motion)Note: Vehicles with 184hp engines require a 60mm reducer. Please verify your engine before ordering.

Performance Tip:For best results, we recommend pairing with Stage 2 tuning software (compatible with most major tuning platforms). This product is emissions-friendly — we recommend the High-Flow Cat version for better environmental responsibility and reduced chance of CEL (check engine light). A CEL eliminator is also available as an option.