CTS Turbo MK1 VW Tiguan and 8U Audi Q3 1.8T/2.0T High-Flow Cat Downpipe (2009-2017)

Replace the strangled factory downpipe on your MK1 VW Tiguan or 8U Audi Q3 with the CTS Turbo high-flow cat, built from 3" T304 seamless stainless and topped with a 200-cell metallic race catalytic converter. Unlike seamed or non-stainless alternatives that can crack and decay, this one is fully TIG-welded for the long run, freeing up spool and peak power.

The larger 3" diameter lets gases leave the turbo and wastegate with far less turbulence, adding power and torque across the band — one of the most effective single mods on any turbo car.

What you get

• 200-cell metallic race catalytic converter
• T304 seamless stainless steel tubing
• T304 stainless steel flanges
• 100% TIG-welded
• T304 stainless steel O2 bungs
• Stainless steel clamps
• Great sound with no added drone
• Removable 60mm reducer to fit the factory exhaust sleeve clamp

Fitment

• 2009-2017 VW Tiguan 1.8T/2.0T FWD/AWD
• 2011-2018 Audi Q3 1.8T/2.0T FWD/AWD

Stage 2 software is required to avoid a check engine light.

Emissions disclaimer: This product is not legal for sale or use on pollution-controlled vehicles operated on public roads and is intended for off-road, race, or closed-course competition use only. You are responsible for compliance with all applicable emissions laws; use on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.