valve weight

[jame4091]

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I have looked everwhere for the weight of these three valves can anyone tell me what they weigh?
1.X-valve
2.Rt-pro valve
3.e-mag valve

From what ive gathered the only big diffrence besides cosmetics is the weight factor, am i correct there is no change in preformance?

[frop]

Performance is the same, Emag & RTP valves are just different engraving, & Xvalve is aluminum.

EDIT: spelling