effect of adding cutout on my tune - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 2 Old 08-29-2017, 12:36 PM Thread Starter
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effect of adding cutout on my tune

My on3 kit was tuned with the blockoff plate on the cutout, and through mufflers. I'd like to add a QTP electric cutout where my blockoff plate currently is. How much will of an affect will running an essentially open downpipe have on my tune?

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post #2 of 2 Old 08-31-2017, 01:27 PM
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I've heard others gain additional 1-2psi of boost. What tuning device are you using?

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