CTS Turbo B8/B8.5 Audi A4/A5/AllRoad/Q5 1.8T/2.0T Test Pipe

The CTS Turbo B8/B8.5 test pipe is the premier test pipe for your Audi A4/A5/AllRoad/Q5 1.8T/2.0T. It seats cleanly where the restrictive stock catalytic converter sits, immediately after the turbocharger, opening up exhaust flow for substantial power gains and a throatier note. A flare measuring nearly 4" tapers down to 3", smoothing the transition of exhaust gas from the turbo into the test pipe. It's one of the best value performance upgrades for A4/A5/AllRoad and Q5 owners — and a great-looking piece too.

Each 3" test pipe is mandrel-bent and hand TIG-welded. Need extra data-logging capability? An extra O2 bung is now included at no extra charge.

Product Details

• T304 stainless steel construction
• Mandrel-bent stainless steel
• Fully TIG-welded design
• Extra O2 bung for wide-band sensor
• Install hardware included
• Throaty sound
• Great power upgrade

Fitment

Fits the factory turbo, CTS-TR-1070, CTS-TR-1070X and CTS B8 BOSS kits.

• 2009-2016 Audi A4 2.0T
• 2009-2016 Audi A5 2.0T
• 2009-2016 Audi AllRoad 2.0T
• 2009-2017 Audi Q5 2.0T
• 1.8TFSI EA888 Gen 1 and 2.0TFSI EA888 Gen 2 ONLY
• Does not fit late ROW cars with the EA888 Gen 3 engine
• Only fits LHD vehicles. Fits manual and automatic transmissions; does not fit CVT

A test pipe will trigger a CEL without proper tuning — Stage 2 software is strongly recommended. CTS Turbo recommends choosing a high-flow cat for the sake of the environment.

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.