Thread: What EXACTLY is a PPI?
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Old 06-06-2006, 09:08 AM   #1
BentleyJava
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Join Date: Mar 2006
Location: Washington, DC
Posts: 24
What EXACTLY is a PPI?
I know what it stands for...but everyone here says to get it, but noone says what Porsche actually does.

Can anyone help?

Thanks,

-Adam
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