Forge DV006 or DV004 ?
Personally myself i like the sound of the wooshing dump valves(DV004), and im not sure if i would be happy not hearing it(DV006).
On the downside i have heard that in some cases the DV006 makes the car perform better than the DV004.
As you can see im from the UK, so i have asked about thhis subject on our forum, but would like to gauge US opinions.
Many thanks in Advance




