Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Burnt Titanium Trims Caption PPF / Resonator Delete Example of the Audi RS3

Example of the Audi RS3 8V Performance Exhausts (Secondary Catalyst Delete Pipes)

enabling continued use of the M4 drive modes to adjust the dynamic of the exhaust

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This allows racers to reliably increase boost and advance ignition timing—without using high-octane racing fuel—for power gains of up to 20%

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Burnt Titanium Trims Caption PPF / Resonator Delete Example of the Audi RS3Our 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