I was thinking after maybe 6 months only change the air filter... me only go for the replacement air filter type not the cone type... my mom will slaughter me kao kao if I do the other... :P
If you guys watched Initial D before, I'm sure you know that Keisuke Takahashi has a twin turbo FD3S. I would like to know the benefits and disadvantages using a twin turbo compared to a single turbo or vice versa...