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Haven’t read replies but the ‘VAREX’ X-Force 2.5/3” catback has a valve system in place you can either manually open and close with a remote, or pay extra for their app that you can configure the valve to open at certain RPM ranges or open to specific %’s. (You can manually open the valve with just the remote to certain intervals but you have to go by ear as you don’t have anything telling you exactly how open it is).
The catback itself sounds good but isn’t crazy loud. I have UEL headers and the catback and drive with the valve fully open. Don’t get me wrong it’s still significantly louder than stock, but not enough for the valve to be totally necessary as it stands. That said I’m planning to upgrade my front/overpipes to try increase the sound which may make the valve remote useful
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