Easy EGR Delete Steps for LLY, LBZ, LMM Duramax Owners

Hey guys! Welcome back to Dynovox tutorial blog. Today, we are going to talk about how to delete EGR on a LLY, LBZ, LMM Duramax. The process of LBZ is very similar for LLY Duramax and LMM Duramax. If you have an LML, that will be a different process. If you find this article useful, please leave your comment below, and if you have questions, ask in the comments or reach out to us on Dyonovox page chat box or any social platform. Anyways, let's get started!

EGR deletes, DPF deletes, and similar modifications are for off-road use only, such as race trucks. This isn't for public roads, so keep that in mind before deleting your truck. Also, you'll need to program the truck to shut off the check engine light because you can't just unplug the EGR valve without tuning the truck. I recommend programming your truck and putting on an aftermarket exhaust if you're doing an EGR delete.

EGR Delete Process

Let’s begin with LBZ. As mentioned, this process is very similar for LLY or LMM Duramax engines. The kit you need for LBZ will comes with a blocker plate, and other necessary components. A Dynovox 6.6L Duramax LBZ EGR Delete Kit is highly recommended here. (Don’t for get to use the code EGR10 for 10% discount and save some money.)

Removing the EGR Cooler

You can start by removing the EGR cooler. If you're just using blocker plates, follow along until we remove the cooler, then you'll be almost done. Once the EGR cooler is out, You can remove the downpipe and up-pipe, and install new components.

First, remove the air intake pipe and disconnect the negatives on both batteries.

Next, disconnect the electrical components bolted down with screws and move all the wiring loose. With the wiring out of the way, start unbolting the EGR cooler.

Draining Coolant

Next move, You can drain some coolant. GM removed the coolant drain on the rod, so we’ll have to pop out the fender and drain the coolant from a line there. After draining, you can get to the EGR cooler.

Removing the Downpipe

For the downpipe, remove the heat shield on the turbo by taking out three 10-millimeter bolts. The cover is tight, so cut it into two pieces with a zip cut for easier removal. Next, remove the downpipe’s heat shield and then the downpipe itself, sliding it out through the bottom.

Exhaust and Up-Pipe Removal

Remove the wheel and fender for more room. Loosen the exhaust, then remove the heat shield bolts. Unbolt the up-pipe from the exhaust manifold and the turbo. Use a ratchet to loosen the bolts. If bolts are tight, heat them up to ease removal. Carefully remove the up-pipe, ensuring no bolts snap.

Final Steps

Compare the old downpipe with the new one—always use aftermarket for better air flow and easier installation. Finally, replace the components, ensuring everything is securely bolted and connected.

That's it! If you followed along, your EGR delete should be complete. Don’t for get to use the code EGR10 for 10% discount and save some money.

Check out EGR Kit for your vehicle:

6.6L Duramax LBZ EGR Delete Kit

6.6L Duramax LMM EGR Delete Kit

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