So will 1Kz. Having a greater torque could be used as advantage. 5L is based on same 2L and 3L designs that were prone to head cracks when over heated. Nevertheless, 5L is latest technology that shouldn't be undermined. So, i endorse both of them, but 1Kz remains my favourite.
A soul in tension that's learning to fly
Condition grounded but determined to try.