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Old 11-14-2012, 12:06 PM   #2
cmiovino
Scooby Guru
 
Member#: 134005
Join Date: Dec 2006
Chapter/Region: MAIC
Location: Pittsburgh, PA
Vehicle:
2004 WRX Premium
PSM

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AP or protune, you'll most likely be denied of any warranty claims you make engine related.

With that said, I'd go with the AP for now. It's good to get started with and you can continue to upgrade to stage 2 later and beyond. The protune will be obsolete once you change another part that requires a tune.

If you're not going to add anything else to the car power related, then get the protune. But who does that.....
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