Alot of ppl use these on their stock turbo, meth/ race gas tuned cars pushin anywhere between 23-28 psi. Shouldnt be a prob. And when they start leaking after that, just crush em

 

I picked up a pound or two of peak boost with the metal DV and it also spiked a bit sooner, held peak boost longer, and tapered less/slower.
I think it works better than the Greddy Type S I had on the Evo and other aftermarket valves I have used in previous cars.