Fleece Performance 01-04 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!This Part Fits: Year Make Model Submodel 2001-2004 Chevrolet Silverado 2500 HD Base 2001-2004 Chevrolet Silverado 2500 HD LS 2001-2004 Chevrolet Silverado 2500 HD LT 2004 Chevrolet Silverado 2500 HD WT 2001-2004 Chevrolet Silverado 3500 Base 2001-2004 Chevrolet Silverado 3500 LS 2001-2004 Chevrolet Silverado 3500 LT 2004 Chevrolet Silverado 3500 WT 2002-2004 GMC Sierra 2500 HD Base 2001-2002 GMC Sierra 2500 HD SL 2001-2004 GMC Sierra 2500 HD SLE 2001-2004 GMC Sierra 2500 HD SLT 2003-2004 GMC Sierra 2500 HD WT 2002-2004 GMC Sierra 3500 Base 2001-2002 GMC Sierra 3500 SL 2001-2004 GMC Sierra 3500 SLE 2001-2004 GMC Sierra 3500 SLT 2004 GMC Sierra 3500 WT