They're finally here! Introducing our new V3 Downpipe Set for the 4M Q7 equipped with the 3.0T supercharged engine. These are the first aftermarket downpipes available to solve the dreaded rattling flex pipe issue in the 2016+ Q7 3.0T while adding some performance and longevity. Our high-flow downpipes are built completely with T304 stainless steel for high strength, corrosion resistance, and longevity. These downpipes remove the small front resonators (sometimes mistaken for secondary cats), allowing your engine to breathe through larger 2.5" piping and smooth transitions. In addition to increased sound (15-20% louder), expect power gains as high as 15HP to the wheels depending on tuning and hardware.   Features: Improved sound Increased engine response Power increase of 10-12 HP on an otherwise stock vehicle V-band connections for strength, adjustability, and expansion* Full T304 stainless steel construction Hand TIG-welded and back-purged  Stainless bellows for unparalleled durability and fewer flex joint failures No check engine light, emissions systems are untouched Works well with both tuned and factory cars - a great replacement option for your rattling flex joints Pairs seamlessly to the factory 60mm sleeve clamps