Fleece Performance High Flow Intake Horn for 2017-2019 GM Silverado 6.6L L5P Duramax

Gain up to 10 additional RWHP with our cast aluminum high flow intake horn for the 2017-2019 L5P 6.6L Duramax! Our intake horn directly replaces the smaller (2.4"" diameter) plastic molded stock intake runner with our larger (3.3"" diameter) cast aluminum model. Kit Contents: Cast aluminum intake horn Square cut O-ring Billet aluminum fitting for PCV connection M8x1.25 mounting hardware Application Notes: This intake horn is a direct replacement for the stock GM intake horn. No modifications or tuning are required to take advantage of this simple upgrade! FPE-L5P-MAP-SPR, FPE-HAR-L5P-INJ-PT

Upgrade your Duramax 6.6L L5P engine with the Fleece Performance High Flow Intake Horn, designed specifically for 2017 through 2019 GM Silverado trucks. This cast aluminum intake horn replaces the stock plastic molded intake runner, which has a 2.4-inch diameter, with a larger 3.3-inch diameter model that enhances airflow and engine performance. Installing this intake horn is a straightforward process that requires no modifications or tuning, making it an easy and effective upgrade for increased horsepower and improved engine efficiency.
Constructed from durable cast aluminum, the intake horn features a square cut O-ring for a secure seal and a billet aluminum fitting for the PCV connection, ensuring reliable operation under demanding conditions. The kit includes M8x1.25 mounting hardware for a secure fit, and it is designed as a direct replacement for the factory intake horn, allowing you to maximize performance without extensive modifications.
This high flow intake horn is ideal for those seeking a simple yet impactful upgrade to their Duramax engine. It provides an additional 10 RWHP, improving overall power delivery and throttle response. The part is not CARB approved, so it is intended for off-road or other non-compliant applications, and it adheres to Prop 65 requirements for safety. Enhance your truck’s airflow and performance with this durable, easy-to-install intake horn from Fleece Performance, engineered to optimize your diesel engine’s capabilities.

Features:

• Direct replacement for stock GM intake horn, no modifications needed

• Larger 3.3-inch diameter cast aluminum design for improved airflow

• Includes square cut O-ring for a secure seal

• Billet aluminum PCV fitting for reliable connection

• M8x1.25 mounting hardware included for easy installation

• Adds up to 10 additional RWHP for enhanced engine performance

• Constructed from durable cast aluminum for longevity

• Designed specifically for 2017-2019 GM Silverado 2500/3500 6.6L L5P Duramax

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1