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aFe large-bore 4" 409 stainless steel DPF-back exhaust for 2007.5–2012 Dodge 6.7L diesel trucks is mandrel-bent and 100% MIG-welded to increase exhaust flow; the market copy cites a 22% flow improvement. The system retains factory mounting points, includes OE-style band clamps and hardware, and finishes with a 5" intercooled polished tip to reduce tailpipe EGTs as noted in the source.
aFe LARGE BORE HD 4in 409-SS DPF-Back Exhaust w/Polished Tip 07.5-12 Dodge Diesel Trucks L6-6.7L(td)
