Fleece Performance FPE-L5P-VNT63-1723 Cheetah Turbocharger - 2017-2023 6.6L L5P Duramax

The Fleece Performance FPE-L5P-VNT63-1723 Cheetah is a stock-appearing drop-in turbocharger for 2017-2023 GM Silverado and Sierra 2500/3500 6.6L L5P Duramax trucks. This is a bolt-on upgrade, not a stock-style replacement - the exclusive 63mm compressor wheel and Inconel turbine wheel deliver smooth throttle response and strong top-end power rated at 650 RWHP, with all OEM functions including the exhaust brake fully maintained and no core charge required.

Buy this if...

• Your truck is a 2017-2023 GM Silverado or Sierra 2500/3500 with the 6.6L L5P Duramax and you want a stock-appearing upgraded turbo that maintains all factory functions including the exhaust brake.
• You want improved throttle response and 650 RWHP headroom in a drop-in package with no core charge and a complete gasket kit included.
• You have your original actuator available for reuse, or you are sourcing the correct replacement actuator for your model year.

Do not choose this if...

• You want a pure stock-output replacement with no added performance - this turbo is built to outperform stock, not replicate it.
• You do not have an original actuator available and have not yet sourced a replacement - the actuator is required and not included.
• Your ship-to address is in a restricted state - see the notice above.

Verify before ordering...

• Confirm your engine code is L5P - this turbo does not fit LLY, LBZ, LMM, or LML applications.
• Confirm you have the correct actuator for your model year (2017-2019 vs 2020-2023) before starting the job.
• Review the intake and MAF sensor notes below before purchasing if you run aftermarket intake components.

Stock Housing, Upgraded Internals - What This Turbo Does and Does Not Change

A stock replacement turbo restores factory output. The FPE-L5P-VNT63-1723 is built to exceed it - and still installs exactly like the factory unit. The exterior uses stock housings. All OEM factory turbocharger functions are maintained including the exhaust brake. No fabrication, no modified piping, no changes to surrounding hardware.

The 63mm compressor wheel and Inconel turbine wheel are not factory components - they deliver meaningfully better throttle response and top-end airflow than the stock turbo. The result is a turbo rated at 650 RWHP that still spools quickly and preserves everything you rely on daily.

Buy this for a complete performance upgrade that keeps all factory functionality intact. Stay with a standard replacement if restoring stock output is all you need.

• 63mm compressor wheel - Fleece Performance exclusive
• Inconel turbine wheel
• Maintains all OEM factory functions including exhaust brake
• Supports up to 650 RWHP
• 100% stock-appearing exterior
• No core charge
• 50-state compliant: CARB EO# D-834-19
• 1 Year Limited Parts Warranty

The Actuator Is Not Included - Plan For This Before You Order

This is not a complete plug-and-play swap without additional planning. The FPE-L5P-VNT63-1723 is sold without an actuator, and the actuator is required to operate the variable nozzle system. You must either reuse your truck's original actuator or source the correct replacement for your build year.

The L5P application splits into two actuator families by model year. Using the wrong actuator will cause turbo control issues. Confirm your year before sourcing:

• 2017-2019 L5P: GM actuator part number 12723306, 12683993, or 12683982
• 2020-2023 L5P: GM actuator part number 12723081 or 12707578

This turbo also replaces specific OEM turbocharger part numbers by model year: 12723305 for MY2017-2019 and 12723083 for MY2020-2023. These can be used as a secondary fitment cross-check.

Intake and MAF Sensor Compatibility - Read This If You Run Aftermarket Intake Components

For optimal performance on most applications, Fleece recommends installing this turbo with the stock intake horn and stock airbox. Aftermarket intake horns and airboxes have been found to affect MAF sensor readings, which negatively impacts turbocharger performance.

When using the stock airbox and intake horn with the Cheetah, Fleece notes that a quality performance module such as an Edge HT2 or Banks Derringer will complement overall drivability.

What Comes In The Kit

This kit includes the turbocharger and a complete gasket set. The actuator is not included.

• Cheetah turbocharger
• EGR tube gasket to intake bridge (qty 1)
• EGR coolant pipe gasket (qty 1)
• PCV to compressor cover gasket (qty 1)
• Coolant feed, coolant return, and oil feed gaskets (qty 3)
• Turbine housing to catalyst gasket (qty 1)
• Oil drain gaskets (qty 2)
• Pedestal gasket (qty 1)

Interchange Part Numbers

Use these as a secondary fitment cross-check after confirming the 2017-2023 6.6L L5P Duramax application. Note: these are the actuator part numbers, not the turbocharger OEM numbers. OEM turbocharger replacements are 12723305 (MY2017-2019) and 12723083 (MY2020-2023).

Installation Instructions

Official installation instructions from Fleece Performance: FPE-L5P-VNT63-1723 Install Instructions

Before You Order

• Application confirmed: 2017-2023 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax.
• Actuator plan confirmed: original actuator available for reuse, or correct replacement sourced for your model year (2017-2019 or 2020-2023).
• Intake configuration noted: stock airbox and intake horn recommended for optimal performance and reliability.
• Ship-to address confirmed: outside restricted states.

Application and actuator plan confirmed? The FPE-L5P-VNT63-1723 is the correct Cheetah for your L5P - a complete bolt-in upgraded turbo with full exhaust brake compatibility, no core charge, and a 1 Year Limited Parts Warranty.

Frequently Asked Questions