Wehrli 4in ID x 4in Long Silicone Hump Boot and Clamp Kit - Replacement synthetic These are only the inner

These are only the inner panels

Automatically activates when Banks Brake is active

so you can adjust it to your specific truck's application

5" hard-anodized 6061 aluminum

SCT's Pre-loaded Dyno Proven tune files optimize the vehicle's Air / Fuel Ratio

Wehrli 4in ID x 4in Long Silicone Hump Boot and Clamp Kit - Replacement synthetic These are only the innerWehrli Model WCF207 100 Contains one 4" x 4" Straight Hump Boot with Logo and two 4" T Bolt Clamps Replacement part for: 2017 2019 L5P Duramax 4" Intake Kit with Air Box (WCF100344) 2001 2004 LB7 Duramax 4" Intake Kit (WCF100334) 2017 2019 L5P Duramax 4" Intake Resonator Pipe (WCF100709) 2017 2019 L5P Duramax 4" Intake Kit with Air Box Stage 2 (WCF100360) 2017 2019 L5P Duramax Stage 2 High Flow Intake Bundle Kit (WCF100441) 2017 2019 L5P Duramax Stage