How Do Boost Controllers Work?

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tdehnel

Senior Member
OK, I've sat and thought about it and I can't figure out how you can regulate the psi your turbo puts out. I have an internal wastegate, so shouldn't my boost be the same every time? If I installed a boost controller, would it have any effect? How would it bypass the wastegate?

I have the Greddy 18g Si Kit with internal wastegate

Please help me if you know anything about boost control.
 
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