RideBuildList logoRIDEBUILDLIST

aFe Power ATLAS 5in Aluminized/409 Stainless DPF-Back Exhaust System [49-42075-B]

Fits 2019-2025 6.7L Cummins I6

We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure

gain
no published figure
price
$511.20
at Diesel Power Products
6% below its 44-day average on this site

Price tracked 9 times since Jul 26, 2026: low $511.20, high $596.40, currently $511.20.

low $511.20 · high $596.40 since Jul 26, 2026
install
2/5 difficulty · ~1.5-2 hrs (reasoned estimate)
Buy at Diesel Power Products→

where to buy · 2 retailers tracked

  • Diesel Power Productsbest pricechecked Sep 8$511.20view
  • aFe Power Directchecked Aug 27$596.40view

A DPF-back exhaust is the diesel equivalent of a cat-back: it replaces everything from the factory diesel particulate filter rearward while leaving the DPF and catalyst fully in place, so it stays emissions-legal.

why this one — aFe is one of the largest diesel performance brands and offers both stainless and aluminized versions of this 5in DPF-back system with a choice of black or polished tips.

why no number is shown

AFe markets ATLAS systems on flow/EGT benefits, not a quantified hp/tq figure, for this SKU.

Questions about this category

F-150: does anyone publish a horsepower number for a cat-back exhaust?F-150: what does a cat-back exhaust cost?F-150: how hard is it to install a cat-back exhaust, and how long does it take?
pairs well with
aFe Power Momentum HD Cold Air Intake System w/ Pro 10R Filter [50-70051T]
Price-drop alert for this part

One email if this part drops in price at a tracked retailer. Real numbers, no spam, stop anytime.

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 our affiliate disclosure.