CTS Turbo 8V/8Y RS3 and 8S TTRS 2.5T EVO 3.5" Single High-Flow CAT

CTS Turbo introduces a single 3.5" high-flow cat downpipe for the 2018+ Audi 8V/8Y RS3 and 8S TTRS with the 2.5L TFSI EVO (EA855) engine. This stainless steel high-flow downpipe lets you remove the restrictive factory main catalytic converters. CAD simulation streamlined exhaust flow and ensured an even split into two outlets, and many hours of R&D went into perfect fit, smooth flow, and excellent sound. A Y-pipe is included for fitment with the factory exhaust.

Features

• Single 3.5" race downpipe
• Durable 304 stainless steel with laser-cut flanges and a precision-machined v-band
• Factory-like placement of O2 sensors
• Designed with the latest 3D scanning technology
• Exhaust flow simulated in CAD for optimal routing
• Aggressive sound that really makes the 2.5T scream
• No drone under normal driving
• 200-cell catalytic converter
• Optional driveshaft removal tool available separately

Fitment

• 2018+ Audi 8V/8Y RS3 2.5T EVO (EA855)
• 2018+ Audi TTRS 2.5T EVO (EA855)

The Check Engine Light will appear after installation; CTS strongly recommends Stage 2 software, as CEL deletes and emulators are not compatible with these cars.

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.