The stock blow-off valve will eventualy leak(trust me it will) because its plastic. I' using Forge recirc. boosting 20 psi and holding. use the blue spring .

 

the stocker I'm using for now won't hold jack past 19psi, any thoughts about the Tomei unit, all the qualities of the stocker but with real seals and a better spring, I had one but it came to me with a broken vacum nipple, new one should be in soon, I hope.

 

I have beern using the forge re-circ one for some time - but i have the turbo smart dual port which i will be testing very soon

 

I'm having boost leak problems running at 21psi with the stocker. Might go with the Greddy Type S when I find some extra money.

 

I'll let you guys know how the Tomei recirc valve performs when it comes in. Tomei claims that it will hold rock solid to 23psi, perfect for me since the most I want to see is a spike to 20.5 to 21psi.

 

I have the TurboXS RFL H34 recirc valve. After installing this valve the car held a solid 19psi to redline. The idle is smooth and I am very happy with it. I think it is a much better valve than stock, and it is certainly not bashed like most other recirc valves, execpt the 1st gen BOV, although even that valve needs a leak-stop mod done to work correctly.

For the ricer in me, the TurboXS looks cooler than the 1G DSM valve. Other than that I would say they are very similar for a stock or modified car.