Fi Exhaust Valvetronic Catback Exhaust System with Front and Mid X Pipe FI Exhaust Audi A7 3.0T Sportback Front Pipe + Mid X Pipe + Rear Muffl FI Exhaust Mercedes Benz AMG GT GTS Mid X Pipe + Valvetronic Mufflers BMW Fi Exhaust G01 X3 30i B48 2019 2022 Front Pipe + Mid Pipe + Valve. Unleash the full potential of your 4. 0 liter twin turbo Cayenne with the Fi Exhaust Valvetronic system engineered for the 2023+ 9YA. 1 and 9YA. 2 platforms. This complete setupfeaturing a high flow front pipe, mid X Pipe, and Valvetronic mufflerdelivers a sharper, deeper exhaust note while maintaining full compatibility with your factory valve behavior. The X Pipe design improves exhaust scavenging and turbo response, resulting in smoother acceleration and a more dynamic engine tone across the rev range. Fis precision crafted Valvetronic muffler integrates seamlessly with the OEM valve logic, giving you the exact same driving modes and valve transitions while significantly elevating sound quality and flow. Finished with quad silver tips for a clean, motorsport inspired look, this system is ideal for drivers seeking an OEM plus upgrade that enhances performance, character, and road presencewithout altering factory electronics or requiring external remotes.