Quote:
Originally Posted by Stew
It seems like there is quite a bit available for the 03-08 5.7s, but yeah, the 09 5.7 is a whole new beast of sorts LOL
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Exactly. The factory already did the hop ups that the aftermarket guys provided for the previous generation 5.7L. The heads are now very high flow (higher than even the SRT I've read). Add to that the VVT and it's like a turbo boost at about 3K RPM.
Those changes allowed the motor to put out about 50 more horse power than the previous design.