6.4 dpf delete with cat on still

[08powerstroker64]

Doing a dpf delete should i take the cat off or leave it im not wanting it to be real loud but give it some more tone than it has now. what woould be the best thing to do?

[michigan37]

Definitely take the cat off. That is how mine is setup and I love it. Not much louder at all. Can't even tell a difference in the cab.

[greasltn]

Do both. If you leave the cat it will eventually clog and they are easier to replace as one unit.

[HotRodDiesel]

What can you do to keep the doc from clogging? Can you run some kind of minor regen to clean it out? How often do you see these cat's clogging? I'm sure there are a few out there interested in this fact or myth. Thanks

[2005josh2006]

I would delete it all. The exhaust is hardly considered loud in the cab (Unless your wot). You really hear it though with the windows down echoing off everything!

[greasltn]

There is no minor regen to clean the cat. The time to clog the cat depends on your driving habits and how much soot you blow.