Does anyone know the actual differences between Bilstein 4600s and their 5100s. I know the Toyota TRD Bilsteins are not true 4600s, rather, they are made by Bilstein to Toyota specs and sell from Toyota for $33. Where the 4600s have an asking price of $60-70.
What makes the 5100 different from the 4600, extended length? Valving, if so, what are the valing rates of each.
Seemingly this information should be at Bilstein, if it is, I sure have not been able to locate it.