Warranty Work

[acelay]

I currently have a dpf delete, cai, and mini maxx tuner. If I put my truck back to stock would the dealer be able to tell I had the dpf deleted? If so, how would they be able to tell? I do not need any warranty work but I was really curious. Thanks

[countryraised]

lot's of guys here do just that, supposedly the H&S and spartan are undetectable on the PCM. you might want to clean the soot out of your tailpipe though.

[colo_dually]

There are quite a few threads on this, and it really boils down to how deep a warranty inspector wants to go. The evidence will be there if they are looking for it, both electronically (I doubt any tuner can be completely undetectable), and mechanically (Core thing here is the motor oil being thinned with fuel during regens, and the lack of exhaust buildup in the DPF filter) .

[acelay]

Originally Posted by countryraised

lot's of guys here do just that, supposedly the H&S and spartan are undetectable on the PCM. you might want to clean the soot out of your tailpipe though.

Thats pretty cool, can anyone confirm this? "supposedly the H&S and spartan are undetectable on the PCM".

[Mxr695]

been running this way for years , truck goes stock completely go get a smog then at the same time trip to dealer stock.\ spartan since 4k now have 52k

[stroker0920]

I heard if they do a headstud job that they look at the spray pattern on the piston to see if there was a tuner on it.