Introducing the APR Catback Exhaust System for the Audi SQ5 The APR Catback Exhaust System for the Audi SQ5 is a complete, high-performance exhaust solution that runs the entire length of the vehicle from the catalyst back. The system is sold in two sections: The front post-catalyst downpipes and midpipes, and the rear catback section. Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance, and elevate sound that's sure to make a statement! Crafted from premium materials and built with advanced manufacturing techniques, this system is designed to withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with an impressive gain of 10 horsepower and 12 FT-LBS of torque to all four wheels with the full system! Unmatched Design and Precision Engineering The APR Midpipe System includes downpipes and midpipes that travel post-catalyst in the engine bay to the underside of the vehicle, eliminating the factory resonators in the process. The APR Rear Catback System starts just after the midpipes but can be combined with our midpipe system to making this a true full-system upgrade. We've minimized restrictions with smooth transitions, oversized piping, and a straight-through muffler. Constructed from mandrel-bent T304 stainless steel with a brushed finish and TIG welding throughout, this exhaust system is as durable as it is striking. Installation is hassle-free, thanks to precision-fit brackets, OEM-style clip clamps, including adapter clamps making both systems compatible with either our systems, or the factory systems. Inspired by RS Performance Like the RS4 and RS5, this system features a reengineered exhaust routing design. It utilizes dual 2.5" (63.5mm) downpipes to dual 2.75" (70mm) midpipes pipes merging through a cast Y-junction into a massive 3.5" (91mm) midpipe, replacing the restrictive factory dual-pipe setup. The exhaust valve is fully integrated with the OEM control system, adjusting automatically to enhance sound during aggressive driving while maintaining a quieter profile during cruising. When closed, exhaust gasses route through the rear muffler featuring straight-through sound absorption technology and when open, bypasses the rear muffler all together. Experience the APR Difference Designed for enthusiasts seeking the perfect balance of power, sound, style, and quality, the APR Catback Exhaust System for the Audi SQ5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.