Here is a list of my mods
Engine
Neuspeed Engine Management upgrade 1.4Bar peak boost
Neuspeed Exhaust with 70mm downpipe and mid section with 60mm rear mufflers
K&N Drop in filter
Denso Iridium Spark Plugs
Neuspeed Power Pulley

Transmission
Neuspeed Short Shifter 35% reduction
Neuspeed Snub mount

Suspenion
Bilstein PSS 9 Coilovers
Neuspeed 21mm rearsway bars

Brake
Neuspeed Brake Lines


I am running the PSS9 Kit for the B6/B7 listed on the Bilstein website, you can use the S4 kit it just uses higher spring rates. The standard PSS9's for the B7 2.0T runs 550LBS springs and the S4 kit runs 650LBS. I tried both on my B7 and I ended up with the 550LBS spring setup it just seemed to work better


There is a possibility of a better electric DV coming out for 2.0T

I will be trying a manual DV conversion in a few weeks