Fleece Performance 24-25 GM 2500/3500 Duramax L5P Secondary MAP Sensor Spacer

SKU: FPE-L5P-MAP-SPR-24

Fleece Performance 24-25 GM 2500/3500 Duramax L5P Secondary MAP Sensor Spacer

2024-2025 GM 2500/3500 Duramax L5P with the Fleece Performance Secondary MAP Sensor Spacer, the industry-leading solution for eliminating soot buildup, enhancing sensor reliability, and optimizing engine performance. Engineered specifically for the secondary MAP sensor on 6.6L Duramax L5P engines, this precision-crafted spacer outperforms all competitors by reducing maintenance, extending sensor life, and ensuring accurate boost readings. Choose Fleece Performance for unmatched quality and reliability—your Duramax deserves the best.

Why Fleece?

• Superior Soot Reduction: The factory MAP sensor placement in the intake air stream leads to excessive soot buildup, requiring frequent cleaning or replacement. The Fleece spacer relocates the secondary MAP sensor out of the direct airflow path, drastically reducing soot accumulation and eliminating routine maintenance hassles.
• Enhanced Sensor Longevity: By minimizing soot contamination, this spacer extends the life of your MAP sensor, preventing inaccurate readings that can compromise fuel economy and power output.
• Seamless Integration: Designed for a perfect fit, the spacer installs in minutes with no modifications required, ensuring compatibility with the factory secondary MAP sensor and harness.
• Precision Engineering: CNC-machined from billet aluminum, the spacer offers unmatched durability and a sleek, corrosion-resistant finish, outlasting cheaper alternatives.
• Complementary Upgrade: Pair with the Fleece Primary MAP Sensor Spacer (FPE-L5P-MAP-SPR) for maximum reliability across both MAP sensors, delivering the ultimate protection for your L5P Duramax.
• Trusted by Enthusiasts: Backed by Fleece Performance’s legacy of innovation, this spacer is the go-to choice for diesel pros seeking OEM+ performance with aftermarket simplicity.

Included:

• CNC-Machined Billet Aluminum Spacer Block: Relocates the secondary MAP sensor for reduced soot exposure.
• Fastener: High-quality mounting hardware for a secure, vibration-free installation.
• Viton O-Ring: Ensures a leak-free seal for reliable performance.
• Installation Instructions: Detailed guide (FPE-2025-90_FPE-L5P-MAP-SPR-24.pdf) for a quick, hassle-free setup.
• Note: Does not include a 1/8″ NPT boost reference port, unlike the primary MAP spacer (FPE-L5P-MAP-SPR).

Fitment:

• 2024-2025 Chevrolet Silverado 2500 HD with 6.6L Duramax L5P Diesel
• 2024-2025 Chevrolet Silverado 3500 HD with 6.6L Duramax L5P Diesel
• 2024-2025 GMC Sierra 2500 HD with 6.6L Duramax L5P Diesel
• 2024-2025 GMC Sierra 3500 HD with 6.6L Duramax L5P Diesel

Incompatibility Note: Designed specifically for the secondary MAP sensor on 2024-2025 L5P models; not compatible with primary MAP sensor or earlier L5P models (2017-2023).

Box Dimensions: 6.7” L x 5.2” W x 2.5” H

Shipping Weight: 0.34 lbs

Born On Date: April 15, 2025

Warranty: 1 Year Limited Warranty (refer to fleeceperformance.com for details).

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