Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Cerakote Black Trims BMW > 2 Series > M240i Coupe�� (G42 XDrive - NAS Non OPF/GPF Models Only) > 2022 and Later giving you a stronger and

giving you a stronger and lighter product

For customers who find the dual mass flywheel wears out too quickly

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

Recommended for competition engines where maximum power release is the preferred criteria and beneficial for high revving engines

Example of Golf GTI sports exhaust (turbo back- de-cat and non-resonated)

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Cerakote Black Trims BMW > 2 Series > M240i Coupe�� (G42 XDrive - NAS Non OPF/GPF Models Only) > 2022 and Later giving you a stronger andOur 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