4" Straight Pipe Exhaust 97 F350 7.3L Powerstroke

[psd1995]

somethan dont sound rite. may just be sound quality but sounds like its chokeing out or something

[jordan13123]

removing that cat i noticed helped me quite a bit it also makes my motor run cooler over time that sut builds up in it and creates more heat

[sambone18]

Did you notice any power difference when you removed the cat? How much better does it sound? I am thinking about doing that to mine.