Def Delete Kit Question - Understanding Its Purpose

[sullybosco]

Hello everyone,

I am currently working with a project where I encountered the "def delete kit" function and was unsure about its purpose.

From my understanding, this function is likely used for removing a kit or collection of items in an application, but I would like to know more about its exact use case and any potential pitfalls to watch out for.

Can anyone explain what this function does specifically, and whether there are any important considerations or best practices for using it?

Any insights would be greatly appreciated.

 

[sullybosco]

Hello everyone,

I am currently working with a project where I encountered the "def delete kit" function and was unsure about its purpose.

From my understanding, this function is likely used for removing a kit or collection of items in an application, but I would like to know more about its exact use case and any potential pitfalls to watch out for.

Can anyone explain what this function does specifically, and whether there are any important considerations or best practices for using it?

Any insights would be greatly appreciated on 6.7 cummins dpf delete kit.

thanks in advance for any help

 

[SteveS]

I'm sort of surprised that tuners are still selling these after the EPA crackdown on diesel tuners that swept up performance car tuners with it. A DEF Delete kit is used to delete the diesel exhaust fluid system from a diesel truck. It would include new exhaust pipes (usually "free flow" i.e. larger and with less muffler), something to remove the computer control of the DEF system, and plugs to close off places where the DEF came from. It removes one of the ways that diesel exhaust is cleaned up. It would at the least be marketed as for "offroad use only", which is apparently no longer being allowed by the EPA.

 

[dhminer]

Looks like he’s not American, so likely that regulations are significantly less.

Stateside, all the EPA did was drive sales underground and make it more expensive which I’m sure was their goal, in part, because less people will pay the higher price.

Ultimately, many of the emissions control devices are desirable to remove because they are said to decrease reliability. I’m highly ignorant regarding DEF systems, but things like EGR valves and PCVs just dirty up otherwise clean intake tracts with a bunch of nasty crap that gunks up valves and decreases octane/knock resistance in many cases which is why everyone deletes them.

 

[Intuit]

I don't miss riding behind the 1980s style emissions one bit; be it a truck or normal passenger vehicle.... but especially passenger vehicles. Now that a significant percentage is running some form of turbo, it could be even worse, since turbos "need" to run rich and might be at greater risk for oil consumption. Riding behind some of these old motorcycles is REALLY bad. 😂 Small engine, BIG stink. They like skunk; small body, BIG stink.

 

[SteveS]

Looks like he’s not American, so likely that regulations are significantly less.

Stateside, all the EPA did was drive sales underground and make it more expensive which I’m sure was their goal, in part, because less people will pay the higher price.

Ultimately, many of the emissions control devices are desirable to remove because they are said to decrease reliability. I’m highly ignorant regarding DEF systems, but things like EGR valves and PCVs just dirty up otherwise clean intake tracts with a bunch of nasty crap that gunks up valves and decreases octane/knock resistance in many cases which is why everyone deletes them.

I would submit that the majority of EGR valves and PVCs deleted are because it's fashionable among a certain group of tuners and their acolytes, not because it really does anything meaningful. just like it's fashionable to decide that you need "step colder plugs" even though you then find your accessport telling you about thousands of misfires and pulling timing...

 

[dhminer]

I would submit that the majority of EGR valves and PVCs deleted are because it's fashionable among a certain group of tuners and their acolytes, not because it really does anything meaningful. just like it's fashionable to decide that you need "step colder plugs" even though you then find your accessport telling you about thousands of misfires and pulling timing...

Couldn’t speak for that community lol but I know for certain the EGR valve on my Mazdaspeed6 was the enemy and had to go