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Discussion Starter #1
I have been strongly swaying towards buying an 08 Focus. I plan on gradually upgrading over time. My question is this: What is a safe level of boost for the Duratec 20 engine?

I was looking into the focus sports stage II set.
 

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Welcome to FF

If you looking for a car to mod then find an older Focus with the 2.3 or the Zetec engine there are a lot more options for the Zetec both wit turbo kit and engine build

Tom
 

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50,000 Psi Ftw!!!
 

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I run 11psi intercooled on my 06 Duratec 2.0 custom turbo.
I believe people run 12psi on the FocusSport intercooled turbos.
 

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Discussion Starter #6
Thanks for the help. I guess my next question is this. At focussport.com on there stage II turbo kit they add that it is not CARB legal everywhere. What are the restrictions in MD? Or where could I find that information?
 
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