01-16-2018, 05:25 PM | #1 |
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Will muffler delete compromise exhaust valve?
Hi all. I’m looking into exhaust modifications and want to explore the muffler/res delete option before jumping to a full system. However, I wanted to know if since the the exhaust valve system is not connected to the muffler, would a muffler delete get rid of this function?
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01-16-2018, 06:28 PM | #2 | |
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Not many aftermarket exhausts allow you the option to keep the valve functionality. I installed an Active Autowerke axle-back and even though they allow me to re install the valve onto the muffler and even plug in the connector, it does nothing. Reason being the muffler is not equipped with the valve.
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2014 435i xDrive M-Sport, Fabspeed cat, Active Autowerke axle back, CTS Turbo intake, ER charge pipe, ER Competition Intercooler, MHD Tuning Stage 2+
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01-16-2018, 07:34 PM | #4 |
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You'd still need the hardware (valve) to be built in to the muffler. I believe Fabspeed has that option but it's a pricey exhaust. If you're doing a muffler delete you are also getting rid of the valve that is built in to the muffler.
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2014 435i xDrive M-Sport, Fabspeed cat, Active Autowerke axle back, CTS Turbo intake, ER charge pipe, ER Competition Intercooler, MHD Tuning Stage 2+
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01-19-2018, 01:53 PM | #5 |
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It doesn't necessarily have to be. If you're considering a muffler delete, it would most likely be a custom set up. You could always cut up the stock muffler (remove the section where the stock valve is) and reuse it in the new custom set up. Not sure what the benefit would be though.
I remember reading one person on the forums did something similar and it ended up helping with drone because when the valve was closed, that part acted almost like a j-pipe. Didn't get much more info from them at the time though so I couldn't validate. |
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01-19-2018, 02:10 PM | #6 | |
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2013 335i M-Sport 6MT, MPE, VRSF CP and IC, BM3 Stage 1
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exhaust, f30, muffler delete, n55, valvetronic |
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