aFe · New
aFe Victory Series 4in 409-SS DPF-Back Exhaust w/ Dual Black Tips 2017 GM Duramax V8-6.6L(td) L5P
MPN 49-44089-B · Store SKU afe49-44089-B
Supplier stock checked 11/7/2026, 10:28:21 AM UTC. Adding a part does not reserve it.
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Product details
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance This exhaust system is constructed of 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 5" Diameter Black Intercooled Tips: Finishing off the exhaust are 5" diameter, Hi-Temp black, stainless steel straight cut tips with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style. **Cutting stock exhaust is required. Rebel XD Series 4 IN 409 Stainless Steel DPF-Back Exhaust w/Dual Black Tips GM Diesel Trucks 17-19 V8-6.6L (td) L5P Rebel XD Series 4 IN 409 Stainless Steel DPF-Back Exhaust w/Dual Black Tips
Manufacturer fitment & guides
Check 49-44089-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