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made a point of saying the Haltech setup can start to nickel and dime you, just at a higher order of magnitude, as you add features.  He runs an AEM unit on his car. Similar to komplexZTT's post just above, I don't race the car, don't need engine telemetry down to the nth degree - just want to safely have a significant amount of more power.  I've started a new tab on my Z spreadsheet to start building up a price comparison.  Cost and ease of use will likely be the main drivers. 
- A-A-Ron  | 
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