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3 inch exhaust for D40
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Old 12-01-2017, 05:21 AM
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acko13 acko13 is offline
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Default 3 inch exhaust for D40

Having suffered some exhaust damage it seems like a good excuse to fit a 3 inch King Brown system from turbo back.
Has anyone on here fitted a 3 inch system to a D40 (140KW) and was there any noticeable improvement?
Is it necessary to have the diesel injector pump re calibrated or whatever?
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Old 12-01-2017, 08:02 AM
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mike1303 mike1303 is offline
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Not necessarily need to touch pump.

There is alot of other brands of there for alot less money to.

Be sure to get a high flow cat and muffler for best results in my opinion
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Old 15-01-2017, 11:36 AM
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MattWij MattWij is offline
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I had a 3" Turbo back Exhaust put on my 126kW Nav.

I got a pretty affordable one. I have an Auto so it was also a DPF delete. It made a noticeable improvement before I got an ECU remap a month later to properly deal with the DPF delete.

If you have a DPF that gets lost in the exhaust upgrade, you will likely need to do a ECU reflash. There are other ways around it but if you want it done properly a remap is the way to do it.
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