Downpipe, B9 SQ5

Optimized for increased flow and maximum performance, the 034Motorsport Stainless Steel Racing Catalyst for B9/B9.5 Audi SQ5 is a drop-in replacement for the restrictive factory catalytic converter. It offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note. It features a massive 148mm diameter Euro4 racing catalytic converter, 304 stainless steel construction, integrated inlet/outlet flanges & O2 sensor bung, precision CNC-machined flange mating surfaces, OE style heat isolation barrier, and is TIG welded & backpurged. Developed entirely in-house using 3D scanning technology, CAD software, and rapid prototyping techniques, and tested extensively on track.