Overview of Duramax L5P Exhaust & Delete Kits

A Duramax L5P exhaust and delete kit removes restrictive emissions like DPF, EGR, and DEF, boosting airflow for raw power. Enthusiasts choose the best L5P delete kit for its proven gains in HP, torque, and efficiency, ideal for towing or racing.

Our kits, starting at $29.90, deliver pro-grade performance – shop now with free shipping and transform your ride!

Benefits of Upgrading Your L5P Exhaust System

Why delete? Expect 50-100+ HP and 100-200 lb-ft torque jumps, plus 3-5 MPG improvements by ditching regens.

A L5P Duramax downpipe and full exhaust slash backpressure, dropping EGTs for safer hauling. Owners rave about crisper throttle, reduced carbon buildup, and a throaty growl – perfect for deleted L5P builds.

Our EGR Performance L5P delete review highlights unmatched reliability, backed by 10+ years of expertise. Long-term? Save on DEF refills and maintenance – a smart investment for tuned and deleted L5P Duramax for sale seekers.

Components Included in a Typical Delete Kit

Our best L5P delete kit packs everything: aluminum alloy L5P Duramax downpipe, mid-pipe, high-flow muffler/resonator, gaskets, clamps, and hardware.

Add-ons like L5P intake horn for smoother airflow, L5P CAN bus plugs to bypass sensors, and ECM tuners prevent codes.

For full deletes, include EGR plates and DEF bypass – all rigorously tested for durability. Priced competitively with a 1-year warranty, it's the complete package for L5P delete tuning.

Compatibility and Fitment Guide

Fits 2017-2025 models: 2017, 2018, 2019, 2020, 2021, 2022, 2023 up to 2024 Duramax delete kit and 2025 L5P delete kit. Compatible with GMC Sierra/Chevy Silverado 2500/3500 HD in all cabs/beds.

Note: 2024-2025 requires bench ECM unlock (~$1000 extra). Our kits ensure bolt-on ease, no cutting needed for most.

Step-by-Step Installation Process

DIY in 3-5 hours: Jack up truck, remove stock exhaust/EGR/DPF (torque to 25-30 lb-ft), install L5P down pipe and components, flash ECM with tuner. Pro tip: Use anti-seize on bolts.

For deleting L5P Duramax, our 24/7 support guides you – or opt for pro install to avoid voids.

Maintenance & Upkeep Tips

Inspect every 10,000 miles: Re-torque fasteners (20 lb-ft), clean L5P intake horn, check L5P CAN plugs. Oil changes every 5,000 miles extend life. Avoid street use to stay legal – our kits thrive off-road.

Trust EGR Performance – certified quality, customer wins. Upgrade today!

Frequently Asked Questions

Q: Is it legal to install an exhaust delete kit on my Duramax L5P?

A: Regulations vary by state. Federal law prohibits tampering with emissions controls on public roads; check CARB status if you’re in a California or CARB-adopted state.

Q: Will deleting the DEF and DPF systems void my truck’s warranty?

A: Yes, tampering with emissions systems typically voids factory warranties. Always verify with your dealer and consider aftermarket warranties.

Q: Can I install the kit myself, or should I seek professional help?

A: A competent DIYer can follow the included instructions, but shops ensure proper fitment, torque specs, and safe vehicle lifts.

Q: What tuning is required after installing the delete kit?

A: A custom or pre-loaded tune that adjusts fuel maps, EGT thresholds, and boost targets is recommended to maximize performance and protect engine health.

Q: How long does the installation take?

A: Typically 3–5 hours, depending on experience level and available tools.

Q: Which delete kit offers the best value for daily driving vs. racing?

A: Mid-range kits balance noise and performance for daily use; high-flow, straight-through systems suit racing or heavy-haul applications.