aFe · New
aFe MACHForce XP Exhaust Aluminized Dual Split DPF Back 11-15 GM Diesel Truck V8-6.6L (td) (BLK tip)
MPN 49-04043-B · Store SKU afe49-04043-B
Supplier stock checked 11/7/2026, 1:31:45 PM 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
Interested in a new exhaust system for your LML Duramax? Check out the ATLAS Dual DPF-Back exhaust system by aFe. This system is constructed from 4 in. mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driverside tailpipe. This provides for quick, hassle-free installation with no modification necessary. Also included in this exhaust system are dual massive 6 in. high temp black powder-coated stainless steel tips with laser-cut stainless steel aFe power badges. The tips feature a drain port on the bottom to keep rust and corrosion away. ATLAS exhaust systems are the perfect combination of performance, fit and value. The exhaust is designed to convert the standard exhaust into and aggressive dual exhaust. Fits perfectly without relocating the spare tire. Allows for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility. ATLAS 4 IN Aluminized Steel DPF-Back Exhaust System w/Black Tip GM Diesel Trucks 11-16 V8-6.6L (td) LML ATLAS 4 IN Aluminized Steel DPF-Back Exhaust System w/Black Tip
Manufacturer fitment & guides
Check 49-04043-B 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
