aFe · New
aFe Exhaust Downpipe Back
MPN 49-44034 · Store SKU afe49-44034
Supplier stock checked 11/7/2026, 9:03:37 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
If you are looking for a highly engineered down pipe look no further than the aFe Power Mach Force XP Down Pipe. Down pipe is 100 percent TIG welded and uses a stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavange the exhaust for increased intake charge and more power. Race proven strength and durability. Designed using a resonance chamber to help reduce the in-cab resonance found with other down pipes. All hardware and brackets are included for a hassle-free installation. MACH Force-Xp 3 IN 409 Stainless Steel Downpipe GM Diesel Trucks 04-10 V8-6.6L (td) LLY/LBZ/LMM MACH Force-Xp 3 IN 409 Stainless Steel Downpipe MACHForce XP Down Pipe
Manufacturer fitment & guides
Check 49-44034 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y