aFe · New
aFe Twisted Steel Header & Connection Pipe Combo GM Diesel Trucks 15-16 V8-6.6L (td) LML
MPN 48-34137 · Store SKU afe48-34137
Supplier stock checked 11/7/2026, 7:52:37 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
Upgrade or replace your LML’s manifolds, up-pipes, and down-pipe with this all-in-one, bolt-on kit, designed to open up your exhaust flow for maximum performance. The headers are constructed out of heavy duty gauge, mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. The up-pipes and down-pipe are constructed out of 2" and 3" mandrel-bent 304 brush finished stainless steel tubing. Two exhaust gas temperature (EGT) ports are provided with this system. A 1/8” NPT EGT probe port is incorporated into the driver’s side manifold and a M14x1.5 port in the down pipe. This allows for easy installation of sensors, gauges or testing equipment. A CNC-machined v-band inlet flange and heavy-duty outlet flange provide a secure, leak-free seal. Twisted Steel 304 Stainless Steel Performance Package GM Diesel Trucks 15-16 V8-6.6L (td) LML Twisted Steel 304 Stainless Steel Performance Package
Manufacturer fitment & guides
Check 48-34137 against the manufacturer’s application information below.
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
