CTS Turbo B8/B8.5 Audi A4/A5/AllRoad/Q5 1.8T/2.0T High Flow Catalytic Converter

The CTS Turbo high-flow cat is the premier upgrade for the B8/B8.5 Audi A4, A5, AllRoad and Q5 1.8T/2.0T. It replaces the restrictive factory catalytic converter mounted right off the turbocharger with free-flowing 3" stainless, unlocking power, better flow and a throatier tone. A near-4" flare tapers down to 3" for a clean exhaust-gas transition out of the turbo, and it looks the part too. A 200-cell metallic core keeps it street-friendly while still flowing hard.

Product Details

• 3" high-flow cat
• T304 stainless steel construction
• 200-cell stainless steel high-flow catalytic core
• Mandrel-bent and fully TIG welded by hand
• Extra O2 bung for wideband installation included
• Install hardware included
• Great power upgrade

Fitment

• 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
• LHD vehicles only; fits manual and automatic, does not fit CVT
• Fits factory turbo, CTS-TR-1070, CTS-TR-1070X and CTS B8 BOSS kits

Proper tuning software must be used to clear the CEL that will occur; a stage 2 software upgrade is strongly recommended.

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.