Some people tell the truth regardless of the sponsorship or dealership deals they get. In my case I paid full boogie retail for the OSG Super Lock in the back of my 350Z long before I sold the product. I approached OSG to see if they had a unit for old Datsuns that I could sell because I liked their product so much better then the Quaifes, Nismo, Kazz, and Cusco units I had run before. That lead to a little bit of development work and a dealership opportunity a couple years ago. It took me about 18 months to convince Toby and others here about how good these diffs really are.My question is does Mr. Johnson have a OS Giken decal on the side of his car? Did he pay full list? If yes, or no, then recommendations are suspect.
As I posted above they are not a magic bullet that makes everyone an autocross God. They are a good step in the right direction given some setup effort on the part of the chassis engineer and some driving style changes on the part of the driver. Just slapping the diff in the car won't make you any faster and the improvements over most existing LSDs are incremental. If you're happy with what you have and are going fast enough, there's no reason to make a change - especially if the big item holding you back is your own driving skill.
