Is an EGR Delete Kit Worth It for Performance and Longevity?

[Stoichiometric]

Hello everyone.

I’ve been researching EGR delete kits and keep seeing mixed opinions about their benefits and risks.

Some people claim they improve engine performance, fuel efficiency, and reduce carbon buildup, while others warn about potential legal issues, increased emissions, and possible engine damage over time.

For those who have installed an EGR delete kit, what has your real-world experience been like? Did you notice a significant difference in performance or maintenance? Also, are there any long-term downsides that don’t get talked about enough?

I’d appreciate insights, especially from diesel truck owners or mechanics with hands-on experience.

 

[Stoichiometric]

Hello everyone.

I’ve been researching EGR delete kits and keep seeing mixed opinions about their benefits and risks.

Some people claim they improve engine performance, fuel efficiency, and reduce carbon buildup, while others warn about potential legal issues, increased emissions, and possible engine damage over time.

For those who have installed an EGR delete kit, what has your real-world experience been like? Did you notice a significant difference in performance or maintenance? Also, are there any long-term downsides that don’t get talked about enough?

I’d appreciate insights, especially from diesel truck owners or mechanics with hands-on experience using the SuncentAuto Cummins EGR delete kit.

thanks in advance for any help

 

[Ricko1966]

What are you working on? I had everything written up well for a gas truck. Then reread your post and saw diesel mechanics,so I deleted everything. I'm not aware of diesel squares having egr valves.

 

[77Dmax]

Eh eye.

 

[bucket]

What are you working on? I had everything written up well for a gas truck. Then reread your post and saw diesel mechanics,so I deleted everything. I'm not aware of diesel squares having egr valves.

The "C" code (I think) 6.2's had an egr in the manifold inlet. The "J" code (again, I think) engines did not.

 

[Old Blue 79 Scot]

I have the same question for my ‘79 350. My EGR housing is cracked and I’d just as soon block it off instead of replacing it. No emissions where I live.

 

[IPB13]

If in fact you have an 09 as your info suggests, then heck yeah its worth it. I had an 09 Duramax and the benefits were immediately noticeable. I also did a turbo back exhaust and a duramax tuners tune with several other bits, but yeah it was great.

If you actually have a C30 with the old 6.2, then I would say the same. You're motor will breath better, be more responsive, and the butt dyno might feel like you picked up some HP

The "C" code (I think) 6.2's had an egr in the manifold inlet. The "J" code (again, I think) engines did not.

Swapping to the J was a popular solution, hard to find though from what I recall.

 

[winfred]

i've not seen an instance where anything would be harmed by deleting egr, as long as you don't need it to pass an inspection, and if its just visual, a "gasket" cut from a beer can typically renders the offending appliance inert

 

[Ricko1966]

i've not seen an instance where anything would be harmed by deleting egr, as long as you don't need it to pass an inspection, and if its just visual, a "gasket" cut from a beer can typically renders the offending appliance inert

Egr reduces combustion temperature. Which lowers cylinder head temperature. The lower temperature makes the engine less like to ping, so the manufacturers could could add more ignition timing,EGR goes completely away when you mash the gas pedal, so no increase in power level. And it has the added benefit of diluting your air fuel mixture with an inert gas that has no effect on combustion, meaning if you can fill 10% of the cylinder with exhaust gas you can only put 90% air fuel charge in so fuel savings and the additional timing you run on a car with EGR is more fuel savings. More ignition timing from the factory was an additional benefit the manufacturer saw with EGR.
Dammit he's working on a diesel. This applies to gas vehicles. Sorry, carry on.

 

[Blue Ox]

Egr reduces combustion temperature. Which lowers cylinder head temperature. The lower temperature makes the engine less like to ping, so the manufacturershould could add more ignition timing,EGR goes completely away when you mash the gas pedal, so no increase in power level. And it has the added benefit of diluting your air fuel mixture with an inert gas that has no effect on combustion, meaning if you can fill 10% of the cylinder with exhaust gas you can only put 90% air fuel charge in so fuel savings and the additional timing you run on a car with EGR is more fuel savings. More ignition timing from the factory was an additional benefit the manufacturer saw with EGR.

True for a gas engine.

 

[Blue Ox]

If you actually have a C30 with the old 6.2, then I would say the same. You're motor will breath better, be more responsive, and the butt dyno might feel like you picked up some HP


Swapping to the J was a popular solution, hard to find though from what I recall.

Same engine. Different manifold and injection pump calibration.

On a 6.2 I'd definitely lose the EGR. All it does is carbon up the intake. You could put a blockoff underneath it, or just stick a ball bearing in the vacuum line.