To be clear, my low beam is better than a halogen bulb, like PIAA, but not as good as the HID it replaced. I may give the one in your Amazon link a go if I can't get better results from this one (they look suspiciously alike).
Is yours designed to be specific for right-hand drive countries, meaning is there an up-sweep to the cut-off on the right only (see shot below)? I ask because mine's cut-off is crisp and level across the middle but sweeps up on
both sides.