2001-2004 LB7 High‑Flow Intake HornSimple, effective bolton intake horn for LB7 Duramax. Backtoback dyno pulls showed a 15 20 hp increase an economical way to gain power and improve intake flow. Lifetime warranty included. Kit Includes Cast aluminum intake horn New gasket Benefits Approx. +15 hp from dyno verified installs Improved airflow and throttle response Direct bolt on replacement for LB7 intake systems Affordable power upgrade with lifetime warranty Fitment Engine: Duramax LB7
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