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I feel like I’ve read before that it’s impossible to install a manual boost controller on a NG saab 9-3. But I’ve also read it’s impossible to add an aftermarket BOV but it has been done nemerous Times, so I’ll ask again. Is it possible to add a MBC (manual boost controller) to a NG saab 9-3 t? I know about the ecu fuel cutting at a certain psi. Just want to add a little more boost.
 

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im sure it is, but the result will be the car running inside a knock map any time you step on it, Running in a knock maps means the car will run VERY rich, and retard timing, thus making the gains negligible compared to actual tuning
 
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