aFe · New
aFe Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Polished Tips 20 GM Diesel Trucks V8-6.6L
MPN 49-44126-P · Store SKU afe49-44126-P
Supplier stock checked 11/7/2026, 9:17:37 AM UTC. Adding a part does not reserve it.
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Product details
This DPF-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system are dual 5" diameter polished 304 stainless steel intercooled clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted on for a unique style. Some cutting may be required, see instruction sheet for further information. Utilizing factory style hangers this system mounts directly to factory mounting locations for a hassle-free installation. A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability. This system fits: Double Cab / Short-Bed - 149.4" Wheelbase, Crew Cab / Short-Bed - 158.9" Wheelbase, Double Cab / Long-Bed - 162.4" Wheelbase, Crew Cab / Long-Bed - 172" Wheelbase Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip GM Diesel Trucks 20-26 V8-6.6L (td) L5P Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip
Manufacturer fitment & guides
Check 49-44126-P 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