RhodyA4

Been talking to a couple of guys who say that with the increased boost from chipping the stock valve is no good. The new PES valve sounds good and I beleive that APR has one also. On the other hand I have heard said not to. Ayone with experience with this?

A4TURBO2 // TMK

APR has always felt that the stock diverter valve is fine and the same with the intake... BOV will make you run rich... and a BOV lets air out into the surface... a diverter valve recycles the air... if you get a BOV... when you let out air the computer miscalculates how much air your taking in and that makes you run rich.... do a search on it.. youll learn alot... later

RhodyA4

Does the bypass valve suffer from the same problem,causing the engine to run rich. Also can you lead me to more info on the MC valve

frank

it's a sweet valve but $$$$ and I believe it can only be installed one way unlike MC's and Forge and the others.

I've seen the turbo XS valve and it's sweet, but it's designed, kinda like a rifle-bolt.

cpayne

Check out the Bailey Valves At:

Chard

do a search on "BOV" you'll see why many people around here don't llike them.

MC

It replaces the stock unit and looks stock. Its a bosch valve rated for more boost. The stock unit leaks past 12 psi. The weak spring lets the diaphram hang open after a shift.

I am up over 250hp with my valve.

Clark