stock, 2.5 bar, gm 3 bar (msd 3 bar), omni 3 or 4 bar, etc. as long as i have the specs for it i can tune it. the problem is if you try to use one with the wrong specs (thinking you have an omni 3 bar and it's really a 4 bar). it can be figured out, but adds unnecessary time to go through the troubleshooting process.

basically stock up to 11ish psi, 2.5 bar up to 22ish psi, 3bar up to 29ish psi, and 4bar up to 48ish psi.