If you're wanting to hold your wastegate shut longer, or wanting to extend the operating pressure range of your current wastegate spring setup, then a 4 port boost control solenoid will help you get there. A 4 port solenoid is also a better option for those who are running antilag in their vehicles. For the most part though, a 3 port is more than sufficient.
For any inquiries or assistance, feel free to reach out to us via email at gcperformance@groundedconceptz.com. We're here to help and ensure you have a seamless experience with our products and services.
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