Fake DPF's

steepanddeep_208 · #1 (**permalink**) 09-02-2009, 06:20 AM

My friend's "soon to be" father in law has a cummins 6.7, and he was telling me that there is a "Fake" DPF system out there for sale to fool the emission bastards we have locally. Anyone know of them?

**Cody6405** · #2 (**permalink**) 09-02-2009, 06:21 AM

Never heard of one, the only thing i have seen people do to get around visual inspection is hollow out the stock dpf

steepanddeep_208 · #3 (**permalink**) 09-02-2009, 06:25 AM

hmmmm...alright....another quick question, i'm really considering deleting this damn thing, i hate it. will i tell a difference if i take off just the DPF and no the cat and what not?

**Cody6405** · #4 (**permalink**) 09-02-2009, 06:29 AM

There will be some difference. If you just take of the dpf and leave the cat you will have to unbolt them at the flange, the problem with this is there is a gasket in there that sometime likes to tear. If it where me and you are looking for minmal install and uninstall stress i would buy a full 3.5" delete pipe. That will remove the dpf/cat and leave your stock tail section.

po-po 5.0 · #5 (**permalink**) 09-02-2009, 06:32 AM

If you just remove it, and don't retune the computer the truck will eventually go into perma-regen. Not good.

steepanddeep_208 · #6 (**permalink**) 09-02-2009, 06:42 AM

ok sweet. hahaha no i know about the tuning, probably gonna go with SCT or spartan

**08stroker250** · #7 (**permalink**) 09-02-2009, 11:53 AM

Fake DPF's would not be that bad of an idea to tell you the truth....

GM Duraturd · #8 (**permalink**) 09-02-2009, 11:56 AM

I don know about dpfs but I have seen people hollow out their cats (on gassers mainly) and weld a pipe inside it so it is a direct flow and not a giant expansion in the exhaust.