EGR Valve and Cooler Delete Kit for 2017+ GM L5P 6.6L Duramax

Description

EGR Valve Cooler Delete Kit 2017+6.6L Duramax L5P

SPEtuner carefully designed and manufactured EGR delete kit features a material upgrade, using solid carbon steel instead of the previous aluminum alloy. This change has increased the maximum temperature resistance from 600 degrees Celsius to 1,500 degrees Celsius, a 2.5-fold increase in high-temperature strength. This unit effectively prevents soot buildup and EGR valve clogging, allowing fresh, dense clean air to circulate instead of reintroducing hot exhaust gases. Improved exhaust flow enables the turbocharger to start faster, resulting in quicker throttle response. High-quality components include billet aluminum construction, nickel-plated steel flanges, a stainless steel dipstick tube bracket, high-temperature silicone hoses, zinc-plated hardware, and precision-fit O-rings. This kit mounts to the exhaust port and flows coolant through a rubber hose for better oil resistance.

Details and Specifications:

• Color: Black
• Type: EGR Delete Kit for Chevrolet GMC 2017 2018 2019 2020 2021 2022 2023 L5P 6.6L Duramax Diesel Sierra/Silverado 2500 3500 HD

Fitment:

• 2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
• 2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD

EGR delete for the 2017, 2018, 2019, 2020, 2021, 2022, 2023 Chevy / GMC Duramax Diesel 6.6 L5P. Will not fit Cab & Chassis trucks. Installing an L5p egr delete kit is one of the best upgrades you can do to increase the reliability of your 6.6 Duramax pickup truck. With this EGR delete you will be able to completely remove your EGR valve & EGR cooler.

Principle: Eliminating the EGR system will prevent soot from building up and clogging the EGR valve. Instead of hot exhaust gas being re-routed into the intake, fresh dense clean air can now circulate. Improved exhaust flow allows the turbocharger to spool up faster which results in quicker throttle response.

This EGR delete is engineered and designed to recirculate engine coolant faster and more efficiently than the stock EGR system. High quality components consist of billet aluminum construction, nickel plated steel flanges, stainless steel dipstick tube bracket, high temp silicone hoses, zinc coated hardware & precision fit o-rings.

Everything needed for a complete install is included. Installation takes approx. 2hrs with basic hand tools. When installing an EGR delete; a DPF delete capable tuner is required to prevent any check engine light or diagnostic trouble codes from setting.

Installation for Duramax L5P Owners

FAQ

Q1: What are the benefits of upgrading to solid carbon steel for the L5P EGR delete kit?

A1: The upgrade to solid carbon steel increases the maximum temperature resistance from 600°C to 1,500°C. This 2.5-fold increase in high-temperature strength ensures maximum durability and prevents warping or failure under extreme exhaust gas temperatures (EGTs) common in tuned L5P Duramax engines.

Q2: Will this EGR valve cooler delete kit fit Cab & Chassis models?

A2: No, this specific EGR delete kit is designed strictly for standard 2017–2023 Chevrolet Silverado and GMC Sierra 2500/3500 HD pickups. It will not fit Cab & Chassis trucks due to differences in the factory routing and exhaust configuration.

Q3: Do I need a tuner after installing this EGR delete on my 2017+ L5P?

A3: Yes, absolutely. Removing the EGR valve and cooler will instantly trigger a Check Engine Light (CEL) and diagnostic trouble codes (DTCs). A DPF/EGR delete-capable tuner is strictly required to electronically disable the EGR system and ensure proper engine performance. Check these l5p tuners for your needs. For unlock your L5P potential, we recommend you try our complete L5P delete kit, including egr/dpf/def delete+tuner.

Q4: How does removing the EGR system improve throttle response?

A4: The EGR system recirculates hot, soot-laden exhaust gases back into the intake. By deleting it, your engine breathes only fresh, dense, clean air. This improved airflow reduces restriction, allowing the turbocharger to spool up faster, which directly translates to quicker and crisper throttle response.

Q5: How long does it take to install the L5P EGR delete kit?

A5: The installation typically takes about 2 hours when using basic hand tools. We include all necessary hardware, billet aluminum components, and precision-fit O-rings to make the process as straightforward as possible for DIYers or professional mechanics.

Q6: Will deleting the EGR cooler cause my Duramax engine to overheat?

A6: No. In fact, this kit is engineered to recirculate engine coolant faster and more efficiently than the restrictive stock EGR cooler system. Bypassing the factory cooler actually reduces heat soak in the cooling system, helping your L5P run cooler under heavy loads.

Q7: Does this kit completely remove both the EGR valve and the EGR cooler?

A7: Yes, this is a comprehensive, full-delete kit. It provides all the necessary block-off plates, nickel-plated steel flanges, and high-temp silicone hoses to completely remove both the restrictive EGR valve and the failure-prone EGR cooler from your 6.6L Duramax.

Q8: Is this EGR delete kit legal for street use?

A8: No. This product completely disables factory emissions equipment and is strictly intended for off-road, closed-course racing, or competition use only. It is not legal for use on public highways or street-registered vehicles.

Q9: Why is a stainless steel dipstick tube bracket included in the kit?

A9: On the L5P Duramax, the factory transmission dipstick tube is secured to the OEM EGR cooler. When you remove the cooler, the tube loses its mounting point. We include a custom stainless steel bracket to securely remount the dipstick tube, preventing vibration and potential damage.

Q10: How does this kit handle coolant rerouting after the cooler is removed?

A10: The kit utilizes high-temperature silicone hoses that mount directly to the exhaust port coolant circuit. This ensures a secure, leak-free loop that maintains proper coolant flow and pressure throughout the engine block without the factory cooler bottleneck.

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