Wehrli 3.5" x 4" ID Straight Reducer x 3" Long Silicone Boot and Clamp Kit

- Qty. 1 of 3.5" x 4" ID Straight Reducer x 3" Long Silicone Boot - Qty. 1 of 4" T-Bolt Clamp - Qty. 1 of 3.5" T-Bolt Clamp Contains one 3.5" x 4" ID Straight Reducer x 3" Long Silicone Boot, one 4" T-Bolt Clamp and one 3.5" T-Bolt Clamp. Replacement part for: 2004.5-2005 LLY Duramax 4" Intake Kit with Air Box (WCF100191) 2004.5-2005 LLY Duramax 4" Intake Kit (WCF100335) 2001-2004 LB7 Duramax 4" Intake Kit with Air Box (WCF100190) 2001-2004 LB7 Duramax 4" Intake Kit (WCF100334) 2001-2004 LB7 Duramax 4" Intake Kit with Air Box Stage 2 (WCF100300) 2001-2004 LB7 Duramax Stage 2 High Flow Intake Bundle Kit (WCF100435) 2001-2004 LB7 Duramax Stage 3 High Flow Intake Bundle Kit (WCF100712) 2003-2007 5.9L Cummins S400/Stock Twin Turbo Kit (WCF100567)