[ISX]

I know a guy with a GMC 5500 that is wanting big power but does not want the DPF to be plugging up the exhaust making him lose power...but obviously it seems to be wired into everything, how can I take off the DPF in place for a straight pipe without having the computer go haywire?

 

[Tow Master]

Um maybe this is a stupid question but whats a DPF?



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[ISX]

Thought I spelled it out in there, guess not.. diesel particulate filter...the big catalytic converter looking thing that catches all the soot then heats it all up and burns it when it gets clogged... Atleast I think it is called a diesel particulate filter..??

 

[ob_1jr]

I have read where guys changed out the exhaust to a 4" system. It works, but you will have CEL. The aftermarket is catching up and soon you will be able to do it and not have the light.

The DPF is on the new LMM engine.

 

[ISX]

So would it make everything work if I put a Y on the exhaust before the DPF and put another pipe going around the DPF and one going through it, and then have that pipe come back to the regular exhaust after the DPF? So then the DPF wouldn't know the difference and you would have flow and no CEL..?

 

[ob_1jr]

I think if you do anything to the exhaust it will trip a CEL...I don't know this for a fact, but if you wait a little while, they (aftermarket) will defeat it.

 

[Tow Master]

Oh ok.. Ya there arent alot of companys that have LMM stuff out so there arent alot of people doing add ons to leardn from there mistakes...

However with GM being as smart as they are and having to comply with all the new laws I'm sure there gonna make it like hell to remove anything emissions related.



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[idrivebowtie]

i agree with tow master there are a lot of companies out there and learn from somebodies elses mistakes because if you make your own mistakes it can be expensive