Flashark 2.4" Stainless Steel Downpipe Exhaust for 2010-2016 Audi S4 B8/B8.5 3.0T V6

Unlock the full potential of your Audi's 3.0T Supercharged V6 with the Flashark 2.4" Catless Downpipes. Designed to replace the restrictive factory catalytic converters, these downpipes deliver significant improvements in exhaust flow, turbo spool time, and overall engine performance. Built from high-quality stainless steel with precision TIG welding, these downpipes are engineered for a true bolt-on installation. Each set comes complete with all necessary clamps, gaskets, and hardware — no cutting, no welding, no fabrication required. Whether you're building a track weapon or upgrading for enhanced daily driving performance, these downpipes are the single most impactful upgrade for the 3.0T V6 platform. Key Features 2.4" (61mm) Pipe — direct upgrade over the restrictive factory catalytic converters, maximizing exhaust flow Catless Design — eliminates exhaust backpressure for improved turbo response, mid-range torque, and top-end power Pre-Welded O2 Sensor Bungs — plug-and-play with factory O2 sensors; extensions may be needed (sold separately) Full Hardware Kit Included — exhaust clamps, gaskets, M10 bolts, and nuts all in the box TIG Welded Stainless Steel — corrosion-resistant, heat-resistant, built to withstand extreme exhaust temperatures Precision CNC Flanges — leak-free seal, perfect fitment every time Direct Bolt-On Fit — no modification needed, installs with basic hand tools Left + Right Included — complete set for both banks of the V6 engine Why Go Catless? The factory catalytic converters on the Audi 3.0T V6 are the single biggest flow restriction in the exhaust system. These cats are designed for emissions compliance, not performance — they create significant backpressure that chokes your engine's breathing ability. Swapping them out with high-flow catless downpipes opens up the path for exhaust gases to exit faster and more efficiently. The result: Faster turbo spool — reduced backpressure means turbos reach boost pressure quicker Stronger mid-range torque — feel the pull from 2,500 RPM to redline More aggressive exhaust note — the supercharged V6 sounds incredible with free-flowing exhaust Improved top-end power — less restriction = more horsepower up top Better throttle response — sharper, more immediate acceleration Whether you're chasing lap times on track days or building a weekend performance sedan, catless downpipes are the #1 bolt-on upgrade for the 3.0T V6 platform. Pro Tip: For maximum gains and to eliminate Check Engine Lights, pair these downpipes with a performance tune from APR, Integrated Engineering (IE), 034Motorsport, or JHM.