I was wondering if I could put the Bosch 710n Dv's in my s4 without blowing the warranty. Also, i'm still trying to decide what mods I want to do. It is a 2001 tiptronic s4, and I don't want to blow the warranty, so no chipping. How about exhaust or intake? TBB? any suggestions? Also I'm thinking of upgrading the sound system (non-bose) with a 12 or 10 inch sub enclosure in the trunk and maybe new components on the doors and rear deck. Has anyone done this to their a4/s4 who can give me pointers on the wiring and installation? Thanks for the help.

 

The 710ns will help with reliable so the dealer wont care about that. I dont think they would say anything about exhaust, atleast mine didnt.