The OEM ones are better then most of the replacement ones. The last Gates brand I installed looks like I need to replace it and its only 3 years old and has 40K on it

1997 Montero LS with a motor swap a 1990 V6 12valve ported heads full 2.5in Ex I run stock tire size for Daily use, off road have 33x12.5 working on going trubo.