Fleece | 2001-2004 GM Duramax 6.6L LB7 High Flow LB7 Intake Horn

Increase your LB7's potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance Modified LB7 Intake Horn ? that?s about the cheapest 15hp from a bolt on you?ll find anywhere!
Inexpensive horsepower upgrade solution for LB7. Back-to-back dyno pulls showed an increase of 15hp.