Does it matter if hub ET value is changed from 45 to ET40?

Many car owners will modify their vehicles after buying a new car or driving for a while. Modification can not only improve the value of the vehicle, but also improve the driving experience of the owner to a certain extent. So does it matter if the hub ET value is changed from 45 to ET40?

Yes, but it has little impact, because as long as the difference of ET values is within 10mm, it will not have much impact on the vehicle. ET value of hub refers to the deviation between hub and tire after installation. The greater the ET value, the greater the depression of the hub, and the smaller the distance between two tires on the same axle. On the contrary, the smaller the ET value, the more the tire protrudes outward and the wheel spacing becomes larger; Therefore, once the value exceeds the critical value, the greater the impact on the vehicle.