Shock seals red & blue
 

Hi as anybody tryed mixing the 2 different seals blue on internal then orange.
I’ve striped down mine tonight after having the car off sombody in Europe. And wondered if this is a upgrade????

Some people who use the pro blue o-rings have found the shocks to leak. This is because the blue o-rings do not have as strong a seal as the orange o-rings. This is also why the blue o-rings are used as quite often the stronger the o-rings make a seal the more friction they apply. Rather than using two blue some poeple go for the middle ground and use one blue and one orange as that has less friction than two orange and does not leak as badly as two blue.

Some drivers do do this yes