Inner CV Boot Replacement

[JoulesCanAm]

I red a previous post that stated the inner boots should be the 'aero' type not 'bellows'? When I contacted the factory they said the ones they suply are all bellows now? So what is best?

either way anyone got a part # I can reference for the inner boot. I'm registered for the Ferrari Pacific Region Virginia City, NV Hillclimb next weekend, but at this rate I won't be ready to go show them up.