X-valve And Emag Valve? Help!

[empnagf]

lookin to get x-valve, but may not have money right now, keep hearing emag and retro mentioned, kinda newbie to upgrades so let me know, what is differences in valves and what is worthwhile as far as price, throw in any suggestions for upgrades.
thanks.

[Dayspring]

Functionally, they are the same valve.

An Emag valve/ReTro valve with the level 10 will work EXACTLY like an Xvalve will. The only difference is that the Xvalve is aluminum and weighs 3oz less.