just to be clear wavetrac isnt developing a new lsd for us. they are building an lsd that they already have in production to FIT in our differential. they have built hundreds already for the c32 /c55 sl55 and bmw as well as audi. because our cars arent in production anymore the company wants the deposits to ensure the diffs being built are sold and not sitting on a shelf useless to them. you have to remember there are only approx 7000 slk/xfires worldwide. its not like building a diff for a vette.
hope this helps