Plus my experience with PD blowers is they are rough on the rest of the car. Drive trains, transmissions, etc. All the low end torque just like to break stuff. If I was going to keep it ~550rwhp I would probably do a PD. If I want 600+ I rather do a centri just to be easier on the transmission.
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Nick
2012 Mustang GT, 6A with some mods, 378rwhp
2006 Corvette Z06, 914rwhp
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