Diamond Eye Performance Diamond Eye K4338A 4 inch Aluminized Cat-Back Single Exit No Tip Exhaust | 2003-2007 Ford F250/F350 6.0L Powerstroke
Fits 2003-2007 6.0L Power Stroke V8
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
A cat-back exhaust replaces the pipes and muffler from the catalytic converter to the tip. It changes how the truck sounds and drops a little weight. This one is the Diamond Eye Performance Diamond Eye K4338A 4 inch Aluminized Cat-Back Single Exit No Tip Exhaust | 2003-2007 Ford F250/F350 6.0L Powerstroke, listed to fit the 2003-2007 Ford F-250/F-350 Super Duty with the 6.0L Power Stroke V8.
why this one — Cat-backs are a sound and looks upgrade first. Treat any power claim as unproven unless the maker publishes a dyno sheet. Alligator Performance lists it at $389.04, and the fitment above is what the listing itself states, not a guess.
No horsepower or torque figure published by Diamond Eye Performance for this part on the Alligator Performance listing, read 2026-09-04. Not estimated.
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 our affiliate disclosure.