Fleece Performance · New
Fleece Performance 2017+ GM Silverado 2500/3500 6.6L L5P Duramax High Flow Intake Horn
MPN FPE-L5P-INTAKEHORN · Store SKU fpeFPE-L5P-INTAKEHORN
Supplier stock checked 11/7/2026, 3:38:55 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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! High Flow Intake Horn for the L5P 6.6L Duramax
Manufacturer fitment & guides
Check FPE-L5P-INTAKEHORN against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
