Audi S4/S5 B9 Non Sport Diff models - Resonated (Quieter) Cat-Back Exhaust System with Quad GT-90 Cerakote Black Trims BMW > 5 Series > M5 4.4l Twin Turbo Hybrid G90 & G99 (NAS/ROW Spec Vehicles) > 2025 and Later Milltek’s AVC enables the driver

Milltek’s AVC enables the driver to choose when the valves open and close to tune the sound and volume of the exhaust

offering drivers fun backroad blasts combined with with a practical and reliable daily driver

Reduces Carbon DepositsModern vehicles fitted with Exhaust Gas Recirculation (EGR) devices for emissions control promote heavy carbon build up inside the air intake

the R8's exhaust has an excellent tone

Audi S4/S5 B9 Non Sport Diff models - Resonated (Quieter) Cat-Back Exhaust System with Quad GT-90 Cerakote Black Trims BMW > 5 Series > M5 4.4l Twin Turbo Hybrid G90 & G99 (NAS/ROW Spec Vehicles) > 2025 and Later Milltek’s AVC enables the driverOur range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back system