Fits: 2017 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel

Gain up to 10 additional RWHP with this cast aluminum high flow intake horn for the 2017-2024 L5P 6.6L Duramax! This intake horn directly replaces the smaller (2.4" diameter) plastic molded stock intake runner with our larger (3.3" diameter) cast aluminum model.

Features:

• Direct Replacement
• No modification or tuning required
• Cast aluminum

Includes:

• Cast Aluminum Intake Horn
• Square cut O-ring
• Billet aluminum fitting for PCV connection
• M8x1.25 mounting hardware 

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
• THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT IS NOT LEGAL IN CALIFORNIA.