Join Date: Feb 2010
Location: Kingston, TN, WATTS BAR LAKE
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couple of the main things that Deleting the DPF will do is:
#1 It will greatly decrease the EBP (exhaust back pressure) and EGT. (exhaust gas temperature. The EBP from the factory on the 6.4 is WAYYY to high and puts unnecessary stress on that motor. A diesel needs to breath (not be choked). EGT during regen can reach temps well over 1000 degrees. Get the DPF delete on, get some sort of DPF delete tune.
While you are at it I would get a set of egr blockoff plates (maybe your Buddy can make them too) and delete the EGR (Exhaust gas recirculate). This will eventually cause you problems when you tune the truck if you dont block off the EGR and disable it with the tuner... It will coke up and stick. (its pretty useless anyway). cobbsdieselperformance.com (who i use) can send you a set for like 40-50 bucks.
I deleted my dpf, did a cold air AFE, EGR delete plates,Magnaflow XL 4" exhaust. SCT touchscreen extreme and ran full synthetic Green Oil with AFE filter. The truck loves it (best oil I have ran so far). Also U.S. Lube 8oz per tank of fuel.
MY MPG went from 10 to 18-20 (if you stay out of it). MY EGT was cut in half, MY engine ran a bit cooler, my power is HUGE, The truck runs soooo much better.
Sorry for the lengthy post. This combination seems to run the best for me.