Wehrli Fab
Wehrli 100342 3.5" Intake Horn Kit | 01-04 GM 6.6L Duramax LB7
3 1/2" Turbo Intake Horn for 2001-2004 LB7 Duramax with factory style IHI Turbo. Great Upgrade for Factory Charger offering Quicker Spool up!
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Create A New AccountWarning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov.
3 1/2" Turbo Intake Horn for the 2017-2019 L5P Duramax with factory style Turbo. The OEM plastic intake horn is 2.4" diameter and we experienced a 25HP Gain with our 3.5" Horn when used with a Max Effort Tune. Tuning not required, this horn will work plug and play tuners or OEM calibration.