CTS TURBO B9 AUDI A4/A5/ALLROAD 2.0T TEST PIPE

The CTS Turbo test pipe replaces the restrictive factory catalytic converter on B9 generation Audi A4, A5 and Allroad 2.0T models from 2017 through 2020. Engineered to reduce exhaust backpressure and unlock the full potential of tuned 2.0-litre turbocharged engines, this precision-manufactured component delivers smoother gas flow throughout the rev range. Built from high-grade materials with quality mandrel bends, it's designed for professional installation in competition or off-road applications where emissions compliance is not required. Essential for workshop builds seeking maximum exhaust efficiency.