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04-18-2003, 02:24 PM
I've got a 99 Sierra 5.3L and I'm about to install a powerdyne supercharger kit (6psi) in a few weeks, it this a reliable kit?. Any suggestions are appreciated. Thanks
03-02-2004, 10:31 PM
I'm not sure about the supercharger. But I'd sure like to know how you like it. Because I have a 99 Sierra 5.3L myself.
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