BMW X3 G01/X4 G02 S58 LCI - Primary Cat-Back System with Carbon Fibre Trims Audi > S4 > 2.7T quattro B5 > 1997 to 2001 Active Sound (ASU) from Milltek

Active Sound (ASU) from Milltek Sport is an innovative solution to enable a user controllable exhaust sound to be made on vehicles that traditionally lack the sound and tone that owners desire

We recommend checking your cam follower:

5mm) bore cat back system weighing in at only 9

PN 30-0300-ACC)

BMW X3 G01/X4 G02 S58 LCI - Primary Cat-Back System with Carbon Fibre Trims Audi > S4 > 2.7T quattro B5 > 1997 to 2001 Active Sound (ASU) from MilltekOur 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