MBRP 4-Inch, Armor Plus Downpipe, FS9460 | 2015-2016 Ford F-250/F-350/F-450
Fits 2015-2016 6.7L Power Stroke V8 (2015 update)
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A downpipe is the section of exhaust bolted straight to the turbo. A wider one lets exhaust leave the turbo with less back pressure. This one is the MBRP 4-Inch, Armor Plus Downpipe, FS9460 | 2015-2016 Ford F-250/F-350/F-450, listed to fit the 2015-2016 Ford F-450 Super Duty with the 6.7L Power Stroke V8 (2015 update).
why this one — Check your local emissions rules before buying. A downpipe change is the part most likely to affect an inspection. MBRP Direct lists it at $389.99, and the fitment above is what the listing itself states, not a guess.
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.