SHOULD YOU REMOVE YOUR DPF? How it affects power gains & fuel use - You won't believe the difference

We give you access to the experts to answer all the questions about DPFs you have.

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How do they work? Are they a problem? Do they reduce power? Should you remove them? We tell you all you need to know with the help of diesel experts Ultimate Diesel Tuning

#4wdaction #DPF #diesel 4WD 24/7

[UltimateDieselTuning]

IT IS ILLEGAL TO REMOVE A DPF!!! The purpose of this test was to see the restrictions with the DPF and without the DPF. There’s been a lot of comments about why we didn’t re-tune the BT-50 after removing the DPF. The vehicle did not require to be retuned after the DPF was removed. The engine still recorded the same targeted turbo boost level and AFRs (air:fuel ratio) on the dyno with the DPF out as it did when we tuned it with the DPF in. So removing the DPF did not alter the tune, the targeted boost and AFRs were still correct. Removing the DPF made no difference in terms of restriction for power and torque production. Nothing on the BT-50 was changed other than removing the DPF and deleting the DPF off the computer (ECU).

This means that we are NOT restricted by the fact that a vehicle is running a DPF, with regards to how much boost and fuel we target during our custom dyno tuning procedure. If we wanted more boost, we can still do that with the DPF in place.

Also note that gains and results always vary from model to model; engine to engine; and are also dependent on how we tune the vehicle for the customer. For example, tuning for max power/torque is vastly different to tuning for towing, which is how this white BT-50 on this dyno, used for this test, was custom dyno tuned by us. If you want to know what kind of results we can get for your diesel vehicle – call us on 1800 034 373.

[karl]

Removing the DPF to gain power isn’t the only reason. It increases reliability. The regen process purposely increases EGT’s causing extreme wear and tear to seals and an increase in oil temps running through the turbo. The DPF is not the only thing that gives trouble. The EGR has been upgraded to allow more exhaust gas to get into an engine to cut down on NOX and reduce combustion chamber temps to help prevent excessive heat already produced by the higher EGT’s. the downside of this, soot also gets into the engine and oil causing premature deterioration to the oil. The soot is abrasive and when mixed with the oil acts like sand paper too all the moving parts inside of your engine causing premature bearing and piston ring failures. Even the best synthetic oil needs to be replaced much sooner than before the requirement of DPF’s and EGR’s.
Both the DPF and EGR need to be in proper working order to work without issue. If one system acts up, it causes issues for the other. Idling also clogs up both systems quickly. Wouldn’t want to be stuck in the middle of the woods when your engine throws a code that severely limits the power of your 4 wheeler.
These systems will be the death of diesel engines so better get used to the idea of gassers.

[BikerBytes]

So, the DPF was made a legal requirement to cut emissions but to keep the DPF clean you have to aimlessly drive for 20 mins at 60kmph to do a burn every so often. Hmmmm. What bright spark in Canberra came up with that idea?

[sanch]

Dpf in my 2011 duramax clogged. Was quoted $6k+ to replace. Luckily the guy at the shop saw that I was in a pinch so he offered to gut the dpf and tune it for $1600. It feels like a whole new truck and am flying under the radar here in CA

[MohVlogz]

you had no gains because your dfp was healthy in the first place and removing it would not make much difference. Now try it with a older car with 17500k on the clock.

[MrCheh]

No brand will promote something illegal... I've seen the difference before and after. The power gains + fuel economy is unbelievable.

[MrDanjacs]

I've been living with a an early DPF system for 240000km, my tips for trouble free operation are..
Keep MAF and MAP sensors clean and replace when out of tolerance.
Make sure you don't have any boost leaks.
Get your intake manifold cleaned every 50000km.
Remaped diesels blow more smoke, more DPF lights.
A bit of freeway driving makes a world of difference.
Avoid dealer servicing, find a diesel mechanic.

[cgrecommended]

Take a drink everytime Shauno uses a redundant acronym phrase.

"DPF filter" =
diesel particulate filter filter.

[cgrecommended]

Shauno: "how exactly does a dpf burnoff happen?"
Toyota: "it doesn't"

[brianwalker]

I’m beginning to think Shauno is being coerced to say anything, for the almighty dollar. I hope l’m wrong.😊

[GVCT]

10k fine for removing a filter?! What ya reckon they'd do if one were caught driving a retired firetruck with a 2 stroke Detroit? Asking for a friend

[tillsy]

well done with trying to convince the masses that DPF's are good, the black soot was not as harmful as the white ash that spews out the tailpipe from the burn off process, its all smoke and mirrors

[baltazardT]

unfortunately if you do the DPF removal exactly the way you did you will get the results you have received. In the USA when most people remove their DPF system they also install a stage 1 tune to most of their diesel vehicles. Here stateside most people can expect to receive a minimum 50+75hp 75-100 tq gains from the removal of the DPF and a mild tune to compensate for the different flowing exhaust system now that the restriction has been removed. Whether you believe it or not having something stuck in your exhaust no matter the shape, size or design will cause restriction, it's just basic science. In a side note with a good tuner they should be able to set up a DPF deleted diesel to run quite a bit cleaner than a factory truck with factory DPF and factory tune.

[live_the_moment_with_arnol]

What u guys should do is leave the DPF filter and just remove whats inside of it so when the cop pulls u over and looks for it it is still there but the insides have been removed so they will never know

[stevenstevens]

Take it out cut it open remove insides weld back together put back on vehicle

[bpwo]

But if you were to retune it with the straight through exhaust the results would differ greatly.

ALL turbocharged vehicles benefit from less restriction within the exhaust system.

[WD]

Yes – there is a class action filed against Toyota for the DPF systems in 2015-2018 Hilux, Fortuner, and Prado models. Toyota has issued a recall to update the technology. It is our understanding from 2019 onwards the DPF systems in the new Toyotas have been fixed. This doesn’t seem to be an industry wide issue. We are seeing that as technology advances – the DPF systems are getting much more reliable. You legally cannot remove your DPF and police are now actively searching for this. Is it really worth a $10k gamble to remove it? In our opinion it's not.

[rockbiterhd]

Try spending 3 days in low range in the mud computer says no

[BrettWilliamson]

During a recent Hilux test drive I had.


Me: Hi Toyota dealer, is the DPF issue fixed?
Toyota dealer: Yeah mate, all fixed.
Me: So why does it have a manual burn off button?
Toyota dealer: Yeah mate, all fixed.
Me: So why the button?
Toyota dealer: Yeah mate, all fixed.

[jdriver]

I can’t believe they just took the dpf out after a tune and added the straight through pipe and didn’t give it another tune without dpf.😭😂