Originally Posted by hun77777
why is that?
Because Dinan's S2 and S3 flashes require either an oil cooler (S2) or an oil cooler + an IC (S3) before you can get them.
I, for example, am one of the unlucky guys who ordered a sport pkg equipped 335 but got no factory oil cooler. . . I even have the square spot where it's supposed to be in my fender, yet its empty.