Wehrli · New
Wehrli LB7/LLY/LBZ/LMM Duramax Twin Turbo 4in Down Pipe
MPN WCF100274 · Store SKU wcfWCF100274
Supplier stock checked 11/8/2026, 3:26:27 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Wehrli Custom Fab Down Pipe, 4in., for LB7/LLY/LBZ/LMM Duramax with Twin / Compound Turbo Down Pipe, 4in., for LB7/LLY/LBZ/LMM Duramax with Twin / Compound Turbo 4" Twin Turbo Down Pipe for LB7/LLY/LBZ/LMM Duramax
Manufacturer fitment & guides
Check WCF100274 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y