2001-2004 LB7 DURAMAX 3.5" INTAKE HORN - WCFAB

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 turbochargers can experience as much as 20HP improvements.
 
No tuning required.