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
• NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))
• This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.