3.5 in. Turbo Intake Horn for the 2020-2024 L5P Duramax with factory style Turbo. The OEM plastic intake horn is 2.4 in. diameter and we experienced a 25HP Gain with our 3.5 in. Horn when used with a Max Effort Tune. Tuning not required, this horn will work plug and play tuners or OEM calibration.

• Will fit on stock truck no other modifications or upgrades necessary!
• INCLUDES provision for the OEM PCV Line connection.
• Will fit with OEM or any aftermarket intake kit.
• 3.5 in. Intake Horn with Port for OEM PCV Line
• Durable Custom Powder Coat Finish
• NO Tuning required, bolt on!
• Mounting studs and nuts
• O-Ring

This Part Fits: