I got this AEM fuel pressure regulator from my old honda. Can it be use in a dsm?

Picture of it is on the top right.

AEM Adjustable Fuel Pressure Regulators - Red [25-302R] - $195.50 : Zen Cart!, The Art of E-commerce

Your link doesn't say, but as long as it is a 1:1 rising rate regulator I don't see why it wouldn't work.

Bringing back a old thread...I'm in this same situation...I'm absolutely sure that it's not rising rate what are the adverse effects of not running 1.1 rising rate besides lean condition? Has any body else done this? Can it be tuned out with a maft?
Thanks guys

You answered your own question yes the lean condition is the problem and no you cant tune around dropping fuel pressure. Thats just asking for trouble