1) e-fans sometimes work, other times not. Depends on a lot of things, but a perfect cooling system is the start.
2) flex fans aren't lighter than stock plastics. No one that has tried them kept them to give you an idea how well they work.
3) most flex fan arrangements still work best with a clutch. Even the domestic guys generally keep them, that and they put the fan the correct distance from the rad, which is important to correct airflow.
2) flex fans aren't lighter than stock plastics. No one that has tried them kept them to give you an idea how well they work.
3) most flex fan arrangements still work best with a clutch. Even the domestic guys generally keep them, that and they put the fan the correct distance from the rad, which is important to correct airflow.