Focus Fanatics - View Single Post - New to ECU Tuning, Please help 03 Zx3.
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Old 03-10-2011, 11:48 PM   #3
iminhell
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Join Date: Jun 2006
Fan#: 36222
Location: Darwin, MN
What I Drive: 2000 & 2001 ZX3's

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For what you have done, I'd say a tune won't do much for you. Put that money into cams and exhaust and you'll see more gains untuned. If you tune with the new cams and exhaust you'll see about double the gain you would W/O.
I'd seen someone mention a comparison between a zetec head (ported) and a Evo 9 head (ported). The zetec flowed more CFM than the Evo head but really lacked on the exhaust side. That's easily seen by the gains you get from an intake vs full exhaust. The exhaust will average +10hp while an intake might be good for +5hp.

A tune as you sit now you might see 10hp. But you'll pay more for that hp than you will for exhaust. Partly why is the tune may not be exact and may need to be tweaked a bit. If you go with Tom things like that wouldn't cost you extra vs Randy (Focus Werks) who may charge extra, not always though, case by case basis and they do good work also.
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