aFe Power Large Bore-HD 4" 409 Stainless DPF-Back Exhaust w/ Black Tip (49-43106-B)
Fits 2018-2020 3.0L Power Stroke
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
Price tracked 12 times since Jul 26, 2026 across the stores we check daily: low $462, high $462, currently $462.
A DPF-back exhaust system replaces the factory muffler and tailpipe section with a larger 4-inch mandrel-bent pipe and a black exhaust tip, deepening the truck's sound without touching the factory diesel particulate filter or catalytic converter.
why this one — This is aFe's heavy-duty stainless option for the 3.0L Power Stroke. It bolts to factory hanger/mounting points and keeps the factory DPF and catalyst in place - a sound and finish upgrade only, not an emissions modification. Part 49-43106-B, confirmed on file at American Trucks 2026-07-23.
DPF-back systems start downstream of the factory diesel particulate filter and catalyst - no power claim made by aFe for this exhaust, it is a sound/tip upgrade. DPF/cat retention confirmed via americantrucks.com product listing (checked 2026-07-23); DPF-back vs delete terminology confirmed generically via spelabautoparts.com exhaust guide (checked 2026-07-23).
Questions about this category
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.