When installing SCT's DPF delete kit on 6.4L Power Strokes, SCT recommends disconnecting the rear band clamp first.


Next, all bolts should be loosened and removed from the exhaust flange on the rear of the catalyst, then the DPF and exhaust should slide toward the rear of the truck in order to remove it.


Vise-grips will be needed to remove the backpressure sensors mounted before and after the DPF element. Be careful when removing the nuts or you will round them off. In addition, be sure to handle the pressure sensors with care because they are plastic and will be reused.


When installing the new piping, slide the pipe onto the remaining rear exhaust (the band clamp is retained), then bolt it right up to the rear of the catalyst. SCT provides new flange bolts in its kits.


SCT's delete kit does not require removal of the catalyst. According to SCT, it takes longer to tune the truck's ECU than it does to install the piping.