CTS TURBO B9.5 AUDI A4/A5/ALLROAD/Q5 2.0T HIGH-FLOW CAT (2021-2025)

The CTS Turbo high-flow catalytic converter is precision-engineered for B9.5 generation Audi A4, A5, Allroad and Q5 models with the 2.0-litre turbocharged engine from 2021 onwards. This performance cat significantly reduces exhaust backpressure compared to the restrictive factory unit, allowing improved exhaust flow throughout the rev range. The high-density substrate maintains emissions performance while delivering sharper throttle response and enhanced engine note. Direct bolt-in fitment utilises factory mounting points and oxygen sensor locations for straightforward installation in professional workshop environments.