9PHX 2011-2025 Powerstroke 6.7 DPF Delete Kit Downpipe-Back Exhaust w/Muffler Race Pipe 4/5 Inch for Ford F250,F350,F450. 9PHX DPF Delete Race Pipe for 6.7 Powerstroke engines is the ultimate solution for Ford F-250, F-350, and F-450 trucks from 2011 to 2023. Available in both 4.0-inch and 5.0-inch diameters, this downpipe-back exhaust system with muffler enhances fuel efficiency, boosts engine performance, and ensures durability with its high-quality T-409 stainless steel construction. Designed for the toughest jobs, it’s a must-have for Powerstroke owners.. Vehicle Fitment:. ● 2011-2023 Ford F-250 Powerstroke 6.7 Diesel  SuperDuty pickup truck. ● 2011-2023 Ford F-450 Powerstroke 6.7 Diesel SuperDuty pickup truck. ● 2011-2023 Ford F-350 Powerstroke 6.7 Diesel SuperDuty pickup truck. Specifications:. Exhaust Material: T-409 stainless steel.. Unlike T-304 Stainless it's still magnetic. So if you testing to see if you actually got stainless; beware that a magnet will still stick to it.. Thickness: 2mm. Inlet Diameter: 4.0", 5.0". 409 Stainless Steel Material. All of the Flashark DPF delete pipes are made of stainless steel 409, which has better durability than aluminized Steel.. ● For 4.0 Inch  DPF Delete Race Pipe (2011-2017). ● For 4.0 Inch  DPF Delete Race Pipe (2011-2019). NOTE: They have some of the years overlapping, but because they were made in different factories, Flashark needs to mark them; these two are the same size in 2011-2017, there is no difference, you can buy them with confidence;. Installation:. Installation typically takes approximately 1 hour using basic hand tools in the convenience of your driveway or garage, and can be completed even more efficiently with access to an automotive lift. Modifications may be necessary for bed/cab configurations with a shorter wheelbase.We recommend the mini maxx tuner for TruckTok stores.. Tuner Required:A tuner capable of DPF delete is necessary for the removal and elimination of emission related sensors, such as the DPF, CAT, SCR, and/or DOC, in order to prevent any check engine light or diagnostic trouble codes from setting.. Benefits: You can expect a significant increase in fuel efficiency.If your DPF is clogged, you are likely averaging around 13-14 mpg, depending on the level of blockage;After removing the DPF/CAT, anticipate achieving a combined mileage of 18-19 mpg.