L5P DPF Delete Kit

The L5P DPF delete kit range from EngineGo covers Silverado and Sierra 2500HD and 3500HD trucks from 2017 up, addressing the DOC alongside the DPF because this engine runs both. The downpipe is 3.5 inches on the L5P, fixed by the turbo outlet, so LML and LMM pipes will not carry over.

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2017-2019 Downpipe-Back Exhaust System DPF Delete 5" for Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P | EngineGo

Downpipe-back Exhaust System DPF Delete 5" for 2017-2019 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

Part #PDP0180AZZ

$679.25

Installation Difficulty Level: Moderate

Duramax Race Exhaust

Pipe Diameter: 5 Inch

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2017-2019 L5P 6.6L Duramax EGR/DPF/DOC Delete Kit 5" Downpipe-Back w/o Muffler, Downpipe | EngineGo

EGR/DPF/DOC Delete Kit for 2017-2019 L5P 6.6L Duramax | 5" Downpipe-Back without Muffler, EGR Delete, 3.5" Downpipe

Part #PCBDK0020AZZ

$1,019.01 $1,044.01

Installation Difficulty Level: Hard

Duramax All-in-one Kit

2017-2019 Downpipe-Back Exhaust System DPF Delete 4" for Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P | EngineGo

Downpipe-back Exhaust System DPF Delete 4" for 2017-2019 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

Part #PDP0290AZZ

$579.00

Installation Difficulty Level: Moderate

Duramax Race Exhaust

Pipe Diameter: 4 Inch

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2017-2019 6.6 Duramax L5P Downpipe-Back 4" & EGR Delete Kit Chevy Silverado/GMC Sierra 2500/3500HD

Downpipe-Back Exhaust DPF Delete 4" & EGR Delete Kit for 2017-2019 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

Part #PCBDK01910AZZ

$721.77 $736.77

Installation Difficulty Level: Hard

Duramax All-in-one Kit

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2017-2019 L5P 6.6L Duramax EGR/DPF/DOC Delete Kit 4" Downpipe-Back w/o Muffler, Downpipe | EngineGo

EGR/DPF/DOC Delete Kit for 2017-2019 L5P 6.6L Duramax | 4" Downpipe-Back without Muffler, EGR Delete, 3.5" Downpipe

Part #PCBDK0030AZZ

$918.76 $943.76

Installation Difficulty Level: Hard

Duramax All-in-one Kit

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2017-2026 L5P 6.6L Duramax EGR/DPF/DOC Delete Kit with Downpipe | 4" DPF Delete | EngineGo

EGR/DPF/DOC Delete Kit for 2017-2026 L5P 6.6L Duramax | 4" DPF Delete Pipe, 3.5" Downpipe

Part #PCBDK0010AZZ

$629.75 $666.75

Installation Difficulty Level: Hard

Duramax All-in-one Kit

2017-2026 6.6L Duramax L5P 4" DPF & Cat Delete Pipe for 17-25 Silverado/Sierra 2500HD/3500HD | EngineGo

DPF & Cat Delete Pipe 4" for 2017-2026 Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Part #PDP0040AZZ

$289.99

Installation Difficulty Level: Moderate

Duramax Race Exhaust

Pipe Diameter: 4 Inch

2020+ 6.6L Duramax L5P Downpipe-Back Exhaust System DPF Delete 4" for Chevy/GMC 2500HD/3500HD | EngineGo

Downpipe-back Exhaust System DPF Delete 4" for 2020-2026 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

Part #PDP0300AZZ

$587.00

Installation Difficulty Level: Moderate

Duramax Race Exhaust

Pipe Diameter: 4 Inch

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2017-2026 6.6 Duramax L5P DPF Delete Race Pipe 4" & EGR Delete Kit Chevy Silverado/GMC Sierra 2500/3500HD

DPF Delete Race Pipe 4" & EGR Delete Kit for 2017-2026 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

Part #PCBDK01890AZZ

$447.76 $467.76

Installation Difficulty Level: Hard

Duramax All-in-one Kit

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2017-2019 6.6 Duramax L5P Downpipe-Back 5" & EGR Delete Kit Chevy Silverado/GMC Sierra 2500/3500HD

Downpipe-Back Exhaust DPF Delete 5" & EGR Delete Kit for 2017-2019 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

Part #PCBDK01900AZZ

$822.02 $837.02

Installation Difficulty Level: Hard

Duramax All-in-one Kit

L5P DPF Delete Kits

Pick by year coverage and pipe layout.

2017-2019 L5P, 5" downpipe-back without muffler, EGR delete, 3.5" downpipe: EGR, DPF, and DOC with the full exhaust run in the larger diameter.
2017-2019 Silverado/Sierra, downpipe-back 5" DPF delete and EGR delete: matched exhaust and EGR package.
2017-2026 L5P, 4" DPF delete pipe, 3.5" downpipe: wider year coverage in a 4" layout.
2017-2026 Silverado/Sierra, 4" DPF delete race pipe and EGR delete: race pipe version.
2020-2023 L5P, CAN-Bus plug connector: the wiring side piece for later trucks.

What Makes the L5P Different

GM changed a great deal when the L5P replaced the LML in 2017. The DOC sits in the system alongside the DPF, so kits address both rather than the filter alone. The downpipe is 3.5" on this platform, which is why you see that spec repeated on the listings and why LML or LMM pipes will not carry over. Year coverage varies between kits, with some listing 2017-2019 and others running through 2026, so read that line rather than assuming your 2022 truck takes the same part as a 2018. On the tuning side the L5P ECM is harder to work with than earlier Duramax generations, which is why the CAN-Bus connector exists as a separate item. Confirm your engine code and year before ordering.

Why L5P Owners Buy From EngineGo

Parts that claim to fit every 6.6L Duramax are the fastest way to a return on this platform. Every kit here names the engine code, the year span, the DPF and downpipe sizes, and whether EGR and DOC are covered. Orders ship from U.S. warehouses, most process the same or next business day excluding Sundays, and free shipping applies within the continental United States. Authorized returns are accepted within 45 calendar days on qualifying items, with stricter terms on electrical items. Send your year, model, and current setup and support will confirm the fit first.

Shop L5P DPF Delete Kits

Check your year against the listed range, then choose your pipe diameter and whether you want the full EGR and DOC coverage. If your truck is a 2019 or 2020 sitting near a range boundary, message support with your details before checkout so you order the right one the first time.

Important: These products are intended for off-road, race, or non-public-road use where permitted. Confirm federal, state, and local laws before purchase and installation. Customers are responsible for legal compliance.

Total items:	Quantity

L5P DPF Delete Kit

Downpipe-back Exhaust System DPF Delete 5" for 2017-2019 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

EGR/DPF/DOC Delete Kit for 2017-2019 L5P 6.6L Duramax | 5" Downpipe-Back without Muffler, EGR Delete, 3.5" Downpipe

Downpipe-back Exhaust System DPF Delete 4" for 2017-2019 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

Downpipe-Back Exhaust DPF Delete 4" & EGR Delete Kit for 2017-2019 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

EGR/DPF/DOC Delete Kit for 2017-2019 L5P 6.6L Duramax | 4" Downpipe-Back without Muffler, EGR Delete, 3.5" Downpipe

EGR/DPF/DOC Delete Kit for 2017-2026 L5P 6.6L Duramax | 4" DPF Delete Pipe, 3.5" Downpipe

DPF & Cat Delete Pipe 4" for 2017-2026 Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Downpipe-back Exhaust System DPF Delete 4" for 2020-2026 Chevy Silverado/GMC Sierra 2500HD/3500HD 6.6L Duramax L5P

DPF Delete Race Pipe 4" & EGR Delete Kit for 2017-2026 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

Downpipe-Back Exhaust DPF Delete 5" & EGR Delete Kit for 2017-2019 Chevy Silverado/GMC Sierra 2500/3500HD 6.6L Duramax L5P

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