2017-2024 Duramax L5P High Flow Intake Horn - Fleece Performance

Gain up to 10 additional RWHP with our cast aluminum high flow intake horn for the 2017-2024 L5P 6.6L Duramax! The Fleece Performance 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!