Extreme Cold Weather Starting Performance for Your Fleece Intake System

The Fleece Performance Cold Weather Upgrade Kit is designed specifically for use with the Fleece Performance Intake and Grid Heater Kit on 2007.5–2024 Dodge Ram 6.7L Cummins engines.

This add-on system provides an additional 700W heating element to improve cold weather startability in extreme temperatures while maintaining efficient power usage and reduced strain on the factory grid heater relay.

Engineered for diesel owners operating in harsh winter climates, this upgrade has been tested and validated for cold starts down to -35°C (-31°F) when paired with the Fleece Intake and Grid Heater Kit.

Features & Benefits

• Fits 2007.5–2024 Dodge Ram 6.7L Cummins
• Designed for use with the Fleece Performance Intake and Grid Heater Kit
• Adds an additional 700W heating element
• Improves cold weather starting performance
• Tested for startability down to -35°C (-31°F)
• Optimized heater placement for maximum efficiency
• Reduced strain on the factory grid heater relay
• High-flex heater cable included
• Direct bolt-on installation

Built for Extreme Winter Conditions

The Fleece Performance Cold Weather Upgrade Kit was engineered for Cummins owners who regularly operate in sustained temperatures below 23°F (-5°C).

By adding a second heating element to the intake system, this kit significantly improves intake air heating capability while maintaining excellent reliability and efficient power consumption.

Optimized Heating Efficiency

Unlike many traditional grid heater systems, the Fleece Performance design uses optimized heater placement within the intake air stream to maximize heating efficiency without excessive electrical load.

This allows the system to achieve excellent cold-start performance with lower overall wattage compared to many competing systems.

Kit Includes

• 700W coil heater
• High-flex heater cable
• Installation hardware

Vehicle Fitment

• 2007.5–2024 Dodge Ram 2500 6.7L Cummins
• 2007.5–2024 Dodge Ram 3500 6.7L Cummins
• 2007.5–2024 Ram 4500/5500 6.7L Cummins Cab & Chassis

Important Notes

• Requires Fleece Performance Intake and Grid Heater Kit
• Designed for extreme cold weather applications
• Professional installation recommended.

** All testing was performed on a 2024 Ram 2500 with the block heater in use and sufficiently charged 12V batteries.  Oil and weight: Freedom Series 100% Synthetic 10W-30