NP300 DPF removal - Turbo, Re-Maps, Back Pressure... - Nissan-Navara.net
Questions & Answers (all variants) Got a problem with your Navara NP 300? Please request help here, hopefully one of us can help.

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post #1 of 34 (permalink) Old 15-04-19, 05:56 AM Thread Starter
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NP300 DPF removal - Turbo, Re-Maps, Back Pressure...

Hi,
I'm looking to install a DPF delete Pipe onto my 2016 Navara NP300. https://ppdperformance.com.au/collec...pf-delete-pipe
I will be leaving the stock 2" exhaust DPF back but just gain better flow. I will be getting it tuned afterwards to turn off EGR and DPF and turn up the boost.
anyone have advice how hard it was to install and what gains it gave??
Cheers

Why own it if you don't drive it. #navlife
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post #2 of 34 (permalink) Old 15-04-19, 08:57 AM
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I am not sure I can recollect many on here tuning up their NP300, and the publicity around heavy fines for removing emissions equipment has probably put people off DPF deletes and suchlike.

How much more power are you looking for?
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post #3 of 34 (permalink) Old 15-04-19, 09:31 AM
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Thereís a narrow window in a NSW NP300ís life where itís out of warranty (3yrs) but does not yet require annual roadworthiness inspection (5yrs).

Once it needs annual inspection youíll either need to find a compliant cash-in-hand inspector to sign it off, or restore the DPF housing (if not internals) so it looks to be present.

I have not deleted the DPF or done any performance work because i donít want to give Nissan Australia any more excuses than theyíve already tried to void my warranty. And Iíve had a turbo failure which would undoubtedly have been knocked back if Iíd modified the chip or deleted the EGR... and all for what? Even if I tripled my acceleration time Iíd still be barely equal to a Kia Rio...

I donít want to discourage you, so I hope you go ahead and have fun. Itís what car ownership is all about! Just sharing my opinions.
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post #4 of 34 (permalink) Old 15-04-19, 11:55 AM
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Just a thought.

For the previous D40, the DPF was present on the auto but not the manual, the power difference was 2 bhp.

On the egr front, plenty of discussion about the power gains, the end result being that zero is reasonable.

So the net effect of deletion of both is likely to be very small.
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post #5 of 34 (permalink) Old 15-04-19, 03:01 PM
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It shouldn't be too difficult to bolt that system on, provided you have the equipment and tools. A few fixings are difficult to access.

The reason why DPF's and EGR's are removed in competition is that they would inhibit tuning of the engine elsewhere. It allows maximum efficiency in the new ECU map programming, whilst exploiting each component's capabilities safely (turbo, injectors, sensor parameters etc etc...). If the EGR and DPF were still present, they would not allow these top parameters to be met.

So, it all comes down to the map, and who does it. You could see massive gains in HP. But removing either is no good without a map to exploit it.

Re. EGR: of course, no one really wants to pour carbon-loaded exhaust gas back into the air intake, but I must mention - *nissan-navara.net, and it's staff, do not recommend the removal of, or tampering with any such emission control device on any road going vehicle. Remember to check local laws*

Na, don't do that yourself, best take it to the garage.

Last edited by mrw27; 15-04-19 at 05:27 PM.
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post #6 of 34 (permalink) Old 15-04-19, 11:32 PM Thread Starter
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Thanks all. My NP300 is only just over 2 years old but already over the km threshold for Nissan warranty. (Yes i drive far to much)
Therefore warranty defect wont be an issue which is the reason I'm looking at a delete.
The tuning company guarantee a 15-20% increase in torque numbers which will help with my towing as I have a 3.5T trailer attached most weeks. This is while still keeping the economy down and the exhaust gas clean. Also a plus for the travel i do.
It will still be a nissan navara and not a dodge ram but if i can tow up a hill even slightly more efficiently ill be happy.
I'll let you all know how it goes if i do go ahead.
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post #7 of 34 (permalink) Old 15-04-19, 11:38 PM
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Quote:
Originally Posted by Jackmck View Post
Thanks all. My NP300 is only just over 2 years old but already over the km threshold for Nissan warranty. (Yes i drive far to much)

Therefore warranty defect wont be an issue which is the reason I'm looking at a delete.

The tuning company guarantee a 15-20% increase in torque numbers which will help with my towing as I have a 3.5T trailer attached most weeks. This is while still keeping the economy down and the exhaust gas clean. Also a plus for the travel i do.

It will still be a nissan navara and not a dodge ram but if i can tow up a hill even slightly more efficiently ill be happy.

I'll let you all know how it goes if i do go ahead.


What do you tow? I find towing performance is pretty good, but Iím (a) comparing it against a 3.0 Patrol, which frankly can barely move itself up hills, and (b) only towing 1700kg max.
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post #8 of 34 (permalink) Old 15-04-19, 11:54 PM
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Quote:
Originally Posted by Jackmck View Post
increase in torque numbers which will help with my towing
Ideal, that's the way forward. Another great addition would be an up-rated clutch.

Quote:
Originally Posted by Jackmck View Post
I'll let you all know how it goes if i do go ahead.
Please do!

Na, don't do that yourself, best take it to the garage.

Last edited by mrw27; 15-04-19 at 11:58 PM.
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post #9 of 34 (permalink) Old 16-04-19, 01:03 AM Thread Starter
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Quote:
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What do you tow? I find towing performance is pretty good, but Iím (a) comparing it against a 3.0 Patrol, which frankly can barely move itself up hills, and (b) only towing 1700kg max.
I tow a camper trailer half the time which has all the gear it it and sits around 2,500kg or my tool trailer which is up to 3,500kg fully loaded. It does tow really well considering it is completely stock performance wise just gets quite hot on long climbs up into the mountains. i'm actually very impressed with what it can tow for such a small engine.

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post #10 of 34 (permalink) Old 16-04-19, 01:06 AM Thread Starter
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See what I can do about fitment over the coming weekend breaks. Fingers crossed it works out like they say.

Why own it if you don't drive it. #navlife
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