Wehrli WCF100833-RED Intake Horn 3.5" for 20-24 Duramax L5P Red

Intake Horn, 3.5in., for 2020-2024 Duramax L5P, WCFab Red 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. INCLUDES provision for the OEM PCV Line connection. NO Tuning required, bolt on! Will fit with OEM or any aftermarket intake kit. Will fit on stock truck no other modifications or upgrades necessary! 3.5 in. Intake Horn with Port for OEM PCV Line