2017-2019 CHEVY / GMC L5P DURAMAX | EZ LYNK TUNER | BYO DPF DEF EGR DELETE KIT

EZ LYNK BYO DPF / DEF / EGR DELETE KIT + SASQUATCH TUNES | 2017–2019 CHEVY / GMC DURAMAX (L5P)

IMPORTANT: The photos may show optional add-ons you can add to your cart — they are not included unless you select them in the menu options below.
Scroll down to customize your kit. This listing is pre-selected with the basic options most customers need to delete their truck, and you can upgrade from there.

Compatibility

L5P ONLY.
❌ Does NOT work on L5D trucks

✅ Works on pickup trucks & 3500HD Cab & Chassis
❌ Does NOT work on 4500/5500

ATTENTION (2017–2018 ECM Unlock Note)

Some 2017–2018 trucks with ECM part number ending in 12676723 (plus some other part numbers) must be bench unlocked by EZ Lynk (ECM shipped in). These trucks are not currently flashable through normal EZ Lynk flashing. If the ECM won’t unlock using the EZ LYNK AutoAgent 3, you’ve basically got two options that are not included in this purchase:

1. Send the ECM to EZ LYNK directly for the unlock/service (they have always done this as a free service, just pay for shipping), or
2. Buy HP Tuners hardware (MPVI3 or MPVI4) + the HP Tuners unlock kit, and purchase 6 HP Tuners credits to complete the unlock.

EZ Lynk releases firmware updates regularly, so this may improve over time.

If you have a flashing/linking issue, EZ Lynk support: 877-207-5530

Optional Add-Ons (Select via Menu Buttons)

As you scroll down, you can add upgrades like:

• 5” T409 stainless exhaust (greatly increases exhaust flow)
• Muffler (helps reduce drone)
• Exhaust tip
• T304 stainless downpipe (replaces factory downpipe / deletes CAT in the factory downpipe)
• S&B cold air intake (helps lower EGTs, great for towing)

SASQUATCH Power Levels

Power level availability depends on your exact truck configuration (Cab & Chassis may have fewer available options), but commonly includes:

• +30hp
• +60hp
• +90hp
• +120hp
• +150hp
• SOTF (Shift-On-The-Fly)
• TCM Tune (when selected / supported)

More files and options may be added as they are released.

SOTF (Shift-On-The-Fly)

SOTF allows you to switch power levels on the fly without re-flashing.
SOTF demo video: https://youtube.com/shorts/n8spuqZASgE?si=R5OySUZz0OU3T4OS

What These Tunes Are Built For

For 2017–2019 L5P Duramax owners who want better throttle response, more torque, and stronger towing/drivability, Sasquatch tunes are designed to make the truck feel the way it should have from the factory.

Great for:

• Daily driving
• Towing / hauling
• Customers who want clean, usable power and refined drivability

Support Options

Single Tune (4-Week Support)

Best if you want to flash one specific level and be done.

• Access to tuning compatible with your truck for 4 weeks
• After 4 weeks ends, the tune currently on the truck stays installed
• Option to upgrade to Lifetime Support later

Full Support Pack (Lifetime) — Recommended

Best for long-term owners and future upgrades.

• Unlimited flashes
• Access to the full tune library available for your truck
• Automatic updates as improvements are released
• No expiration — keeps your AutoAgent current long-term

Why SASQUATCH Tunes

• Custom-built tuning for real-world performance
• Maximized torque and horsepower for the L5P
• Safe, reliable power without compromise

Forget weak factory settings — these files are built for Duramax owners who want the truck to perform right.

What this package is built for
This product is ideal for owners who want:

• stronger low-end response

• better towing manners

• improved drivability

• smoother overall power delivery

• support from a team familiar with the L5P platform

Why customers choose Sasquatch Diesel

• Fast shipping to U.S. customers

• No cross-border duties for U.S. buyers

• Free ground shipping

• Typical delivery time of 4–7 business days

• 7 days a week support

• Install help available every day

• Competitive pricing

• Strong towing and drivability-focused support

Important Notes

• Custom tuning is non-returnable / non-refundable.
• Off-road / competition use only. Customer is responsible for compliance with all local/state/provincial/federal laws.
• Always flash with a stable battery charger connected to prevent voltage drop during programming.
• Click HERE for step by step tuning instructions.

DO I HAVE ELECTRIC OR MANUAL 4X4?

• Electric shift (ESOF): dash push-buttons or rotary dial
• Manual shift: floor lever that mechanically shifts the transfer case via linkage/cable