WCFAB 2001-2004 LB7 Duramax 3.5" Intake Horn Powdercoating:Bronze Chrome (-BC) Whether your 2003–2005 Chevy/GMC 6

Whether your 2003–2005 Chevy/GMC 6

No tuning required

our horn will work with that intake

the last four years have given the S&S engineers plenty of time to discover and eliminate potential problems

This device plugs into a vehicle's OBDII port and connects to a user's laptop with HP Tuners' VCM Suite software package

WCFAB 2001-2004 LB7 Duramax 3.5" Intake Horn Powdercoating:Bronze Chrome (-BC) Whether your 2003–2005 Chevy/GMC 6Powdercoat colors can be found here! 3 1 2" Turbo Intake Horn for 2001 2004 LB7 Duramax. Compatible with factory IHI Turbo or upgraded drop in IHI Turbos and OEM or aftermarket intakes. Great upgrade offering quicker spool up and more HP! Max effort tuned trucks can see 10 15HP gains while applications with upgraded turbo's can experience as much as 20HP improvements. 3 1 2" Intake Horn Stainless Hardware Gasket Powder coating