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Old November 11th, 2019, 15:29   #1
chavy
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Default TDI centre silencer delete?

Hi, iím new here and you people have probably been asked this question a thousand times but I have a VW Polo 1.6 TDI and I am wondering if deleting the resonator/mid box will make any difference in terms of sound? I have been told by a few people that it wonít make a difference because of it being a diesel since they donít make that loud noise that petrol engines do but I just wanted to make sure with the people who know a lot about TDIís.
Thanks.
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Old November 11th, 2019, 15:31   #2
scooperhsd
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You could probably run a straight pipe since the TDI has a turbocharger to tone down exhaust. I am - just a resonator at the end just in case it was a bit droning.
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Old November 11th, 2019, 15:40   #3
JSWTDI09
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Are you certain that it is just a resonator? Are there any wires going to it like sensors. Just make sure it is not part of the emissions system that is monitored by the ECU.


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Old November 11th, 2019, 15:54   #4
chavy
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I just want it to sound louder. I have a complete stock exhaust every silencer possible is in there I only wanted to know if it would sound any louder if I got rid of the resonator and just replaced it with a straight bit of pipe. Also wanting to know if a resonator delete would pass an MOT.
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Old November 12th, 2019, 12:12   #5
chavy
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nobody?
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Old November 12th, 2019, 19:41   #6
JesseTDI
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If the DPF is still there you wont have much change in sound. The turbo tones down the exhaust sound and the DPF all but eliminates the rest.
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Old November 14th, 2019, 05:45   #7
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Don't know how an MOT inspection will do, as here in the USofA, some inspection shops are super a/r, and others not so much. And some states don't have inspections.

Yes, the center resonator is merely a section of tube with some holes in the sides. It doesn't do a lot, but probably changes the frequency of droning that happens. From the car's point of view, they're probably worthless. For you, it would eliminate yet another item that will rust. What it will do for a MOT is something I have no way of knowing.

Good luck,

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