Fleece L5P Intake Horn

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Gain up to 10 additional RWHP with our cast aluminum high flow intake horn for the 2017-2024 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! WARRANTY 1 Year Limited Parts Warranty FITMENT 2017 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2018 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2019 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2020 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2021 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2022 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2023 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax 2024 GM Silverado/Sierra 2500/3500 6.6L L5P Duramax INSTRUCTIONS FPE-2023-101_FPE-L5P-INTAKEHORN.pdf Show more