2001 Audi s4

[Mk4_30R_Ban]

@ST4TUS

Neuspeed Catback - ~$850shipped

*Can’t say which will sound the best, but IMO id go with
one of the more inexpensive catbacks and spend some money
on aftermarket DP’s / whatever else you need to build a true
turboback

used on AudiZine, far less. and it sounds good (on a 6speed car) autotragic. im sure they all sound equally terrible.