Hey guys,

I have ordered the forge 008 diverter valve for my 1.8T, Now I know this comes with springs and shims.. But what are they exactly for and what do they do that's different? I'm running the APR K04 turbo pro tune with larger injectors and upgraded ECU, this system allows me to choose in between 4 slots for more boost so I don't know if that changes things. I'm always running slot 1 which is a little over stock and sometimes I put it in slot 2 which again a little more power then slot 1.

Any info would help and I would really appreciate it.