Audi S4 B9 Sport Diff without Brace Bars - Resonated Cat Back with Polished Trims Part_Quad Exit Conversion 5db increase in sound levels

5db increase in sound levels when idle

8mm pipework and fit from the catalytic converter section backwards (Cat-back) these exhausts replace the centre and rear sections

8T vehicles with the bolt down coilpacks

That means it is much smoother in operation

This BMW M340i performance exhaust is made in 3

Audi S4 B9 Sport Diff without Brace Bars - Resonated Cat Back with Polished Trims Part_Quad Exit Conversion 5db increase in sound levelsOur 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