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Seguler 2017-2023 6.6L Duramax L5P DPF/CCV/EGR Delete & Downpipe w/Can Bus kit
by SEGULER

Seguler 2017-2023 6.6L Duramax L5P DPF/CCV/EGR Delete & Downpipe w/Can Bus kit

SKU SG-ER-0290-1
$231.00 - $1,532.00
$727.00
$231.00 - $1,532.00
$727.00
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FITMENT

  • 2017-2023 6.6L Silverado & Sierra Duramax L5P 2500HD 3500HD Diesel engine trucks.
  • Note: Will NOT fit Cab & Chassis commercial-style trucks.

DESCRIPTION

Product Overview

  • Restrictive exhaust hardware, heavy intake sludge, and exposed electrical connectors severely compromise the performance and long-term durability of L5P Duramax trucks. Restricted stock downpipes trap intense heat near the turbo, while factory EGR and CCV systems combine abrasive soot with oily blow-by vapor to coat the intercooler, intake valves, and turbocharger. Additionally, removing factory emissions components leaves raw harness plugs vulnerable to corrosion and short-circuiting beneath the chassis.
  • This all-in-one L5P Performance & Protection Package eliminates factory breathing restrictions while safeguarding your truck's vital electronics. Featuring a free-flowing turbo downpipe, complete intake-clearing hardware, and heavy-duty plug-and-play harness caps, it restores crisp turbo spool, stops manifold contamination at the source, and keeps your vehicle's electronic network fully protected in all driving conditions.

Key Features

  • Unlocks the exhaust path and cools combustion temps by trading the crushed factory downpipe and DPF canister for 3.5" and 4"/5" piping, eliminating active regenerations.
  • Guards both airways by keeping abrasive soot and oily mist from combining in the intake manifold, preserving clean airflow and shielding the intercooler boots.
  • Sharpens throttle response by relieving turbine backpressure right at the housing, so the VGT spools quicker and hits harder off the line.
  • Weatherproofs the electronics by capping every unplugged sensor harness with CAN-BUS connector plugs, fending off water, corrosion, and road grime.

FAQ

Q: Which components are selectable in this full L5P master kit? 

A: This modular package allows you to customize exhaust sizes, downpipe options, EGR solutions, CCV systems, and CAN-BUS components. You can put together a configuration tailored to your driving style, towing needs, and performance goals.

Q: How do I decide between the 4" and 5" exhaust choices? 

A: Pick 4" for easy clearance, quick turbo spool, and a smooth tone with minimal cab drone. Pick 5" for heavy towing and aggressive tunes, where you want maximum EGT drops and a deep diesel roar.

Q: What’s the benefit of pairing EGR and CCV upgrades? 

A: The EGR system feeds exhaust soot into the intake while the CCV system adds oil vapor. Addressing both simultaneously keeps soot and oil contamination from accumulating inside the intake tract.

Q: Why do CAN-BUS components vary by model year? 

A: The L5P platform runs different electronic configurations across model years, so CAN-BUS components are matched to specific year ranges. Picking the correct one ensures the harness connectors fit and seal properly on your truck.