Wehrli Custom Fabrication LB7/LLY/LBZ/LMM Duramax S400 3" Down Pipe  - WCF100878, WCF100811

-3" Down Pipe
-V-band Clamp
-Heat Wrap & Clamps
-High Temp Coating
LB7/LLY/LBZ/LMM Duramax 3" Down pipe for S400 turbo with 4.6" Diameter flat exhaust outlet flange (Half marmon). This down pipe mates to the exhaust system v-band flange with OEM clamp for easy install. Must be used with a T4 pedestal between 5.5-6.5" tall. For LB7 use WCF100878 For LLY/LBZ/LMM use WCF100811