CTS-EXH-DP-0015 - CTS Turbo 3.5" Stainless Steel Downpipe for VW Golf R MK7/MK7.5 & Audi A3/S3/TT/TTS Quattro

The CTS Turbo 3.5" stainless steel downpipe (reference CTS-EXH-DP-0015) is specifically designed for MQB AWD platforms: Volkswagen Golf R / Golf AWD and Audi A3/S3/TT/TTS Quattro. Engineered for engine tuning and Stage 2 configurations, this performance downpipe liberates exhaust gas flow, drastically reduces factory restrictions, and allows you to take full advantage of a software remap and sport exhaust system.

CTS Turbo Downpipe Technical Features

• Seamless T304 stainless steel tubing with a 3.5" diameter from the turbo exit, ensuring maximum flow of exhaust gases.
• CNC machined T304 stainless steel flanges at the turbine discharge, guaranteeing a perfect fit and optimal sealing.
• 100% TIG welded for excellent mechanical strength and a high-end finish.
• Mandrel-bent curves ensuring a constant diameter and smooth transitions without crushing.
• Integrated T304 stainless steel O2 bungs to maintain OEM sensor fitment.
• Stainless steel Torca Accuseal clamps included for a leak-proof and durable installation.
• Modular design allowing for the easy addition of a high-flow catalytic converter if necessary, thanks to the line configuration.
• Pleasant sporty sound even with the stock exhaust, without annoying drone at cruising speeds.

Benefits for Tuning and Performance

• Eliminates heavy restrictions of the OEM downpipe, which is particularly limiting on chipped or remapped vehicles.
• Reduction in turbo backpressure, resulting in better spool-up, lower exhaust gas temperatures, and significant power/torque gains in Stage 2.
• Improved throttle response, with a sharper and more linear feel throughout the rev range.
• Compatible with the factory exhaust or a full stainless steel cat-back system for a complete performance setup.
• Ideal for street & track use, track days, and performance-oriented builds on the MQB AWD platform.

Vehicle Compatibility – MQB AWD Platforms

The CTS Turbo MQB AWD Downpipe CTS-EXH-DP-0015 is compatible with the following models:

• Volkswagen Golf AWD Alltrack / Golf SportWagen 4Motion – 2015 to 2020 (incl. facelift).
• Volkswagen Golf R Mk7 / Mk7.5 – 2015 to 2020 (incl. facelift).
• Audi A3 8V Quattro – 2015 to 2020 (incl. facelift).
• Audi S3 8V Quattro – 2015 to 2020 (incl. facelift).
• Audi TT 8S Quattro – 2015 onwards.
• Audi TTS 8S Quattro – 2015 onwards.

Important note: Installing this decat / racing downpipe will trigger a Check Engine Light (CEL) if no software adaptation is performed. A Stage 2 remap or specific software is required to delete the fault code and optimize performance.