is there any one out there that knows the size of the down pipe (OEM). to me it looks bigger than 3.5" but i would rather find out from some one that knows for sure. i am looking at going to 4" or 5" but i am not sure yet what to start with depending on what is there. finally SCT sent me a tune that works very good under there custom tunning. no more DPF!!!!
what size is the down pipe 08 6.4L
- Thread starter MURR3061
- Start date
platinum01
Full Access Member
Sorry can't help you with the DP size. Just wondering how the truck runs with the tune and the DPF gone. Notice any mileage yet?
johnkid
Full Access Member
MURR3061 i think the factory dp size is 4.25" 5in would be a tight fit cuz everythings so crammed why dont you measure the diameter with a caliper .......ill check it tomm at work but im pretty shure its 4.25" let cha kno tomm
johnkid
Full Access Member
You prob already found out but its 4.5 " down pipe squeezed like a pancake in some areas just like the other pipes on the truck hahah
johnkid
Full Access Member
hope it all works out ! , btw are you runin a spartan or hs performance delete ?