So I'm looking to upgrade my DVs. Am I correct when I say that recirculating DV's perform better than normal non-looping DV's? If I were to get a recirculating one, does it make the car run more lean?

When should I upgrade my wastegate if applicable at all?

Thank you in advance!

 

Yes, you need the recirculating ones because if they are not its the same as bov's which we all know are bad. No, you won't run more lean because that's how the systems supposed to run. I actually haven't even seen a place to buy better waste gates, all I hear aboutare the n-75 (common.)

 

Your car comes with recirculating valves, and buying anyhting buy causes problems (running rich, not good for O2's and cats).

If your looking for aftermarket get either Bosch 710Ns (from the audi TT) which would be the cheapest, or Forge 007's if you want a high quality rebuildable valve that will last.

I blew my 710N's..... they made BOV sounds when i shifted

 

Beautiful, thank you!