Any additional weight of the V3 over a cheaper aluminum JDM coilover is more than offset by the ride quality and performance of the V3. If a suspension gains you tenths or even seconds on the track by being easier to drive, more compliant and comfortable, keeping the wheels on the ground, and stable; those benefits far outweighs being slightly heavier.
For the street-minded, the better damping of the V3 improves ride quality more than a lighter, cheaply built damper.
Any wheels heavier than stock would make a more noticeable affect than a heavier damper. If you have heavy wheels, a subwoofer, Nav system, stock heavy exhaust, stock seats, spare tire, stock steering wheel, or ate that burger for lunch instead of that salad, you have more important weight savings to consider than a heavier damper, especially one with the performance of the V3.
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