As the title says, what do I need to do to increase the performance of my 2008 S6 v10? This thing has a monster for a motor and I want to squeeze what I can out of her.

 

Intake, exhaust, ECU flash. That's about it.. as the years have gone on, S-Line cars have lost their tune ability. Unless you want to pull the engine out your options are limited. If your feeling bold you can look into a NOS kit. My friend has one on his Subaru, it's terrifying haha. Also meth injection kits give some power increase and some engine protection. Good luck!

 

Yeah, I am going to have to go with tune, exhaust and intake filters as follows;

1. ARP Tune
2. Meltek exhaust
3. K&N filter with airbox flap removed

I'm looking at about 4k so it might be a few months until I save enough money for it all.