Greetings,
i bought a fmdv008 forge exhaust valve, from a private individual at a very convenient price, still new and packaged, inside the package I also have the green/blue/red spring kit.
Inside the valve a green spring is already pre-installed, now my thought is which spring will be good? (the yellow spring is not in the kit), according to Forge there is a rough estimate of the pressures at which the springs work.
Which one should I install? do I need the yellow one?
I run with a manual fpr at 1.2 bar.

here is an estimate in bar.

Yes its the yellow one :0(

Thanks