[radz28]

I'm choosing the PDs because at least one of them are already on the street and proving itself, while at least three others are in the works and will be on the streets ripping it up too. I prefer the looks of a PD over the others. I like the power/torque curves. I like how "simple" they are in the way they sit on the engine as opposed to adding more brackets and such to get them to work; just seems a little cleaner to my eye. I like the sound they make.

Silly reasons, but one of the centrifugals have always sounded like it was going to explode to me (though I've never read of one doing such). I guess they are just a bit more traditional, if you will. I know that the potential of at least a few of the centrifugals and especially the turbos' have power potential I'll never get close to, but the simplicity in the plumbing and maintenance is also a plus for me.