I'm sure it was Bobby I stole the idea from with the airbox, if you open it up, under the filter there's a vacuum operated valve in the bottom of the airbox, just like inside the anti shudder valve but plastic. If you take the airbox base out, (careful with wires connected to underside and hose ran through the inside) you can take that flap out leaving a second intake pipe opening in the airbox. Left like this it would draw more air from the engine bay but I have a pipe ran down from the new opening to the fog light level. I have the debadged black honeycomb grill on the front but still have the factory blanks around headlights so for now the pipe is only ran to the back of them. Idea was to get the honeycomb fog light inserts and either fix the hose to the back of that or to cut in one of them ram air ports beside the fog light. All debadged and trying to stay as low key as possible on outside so cant decide. Only issue is now can't drive through deep water but would try to avoid that anyway. Routing the pipes higher may be possible but don't see a good gap around the rad. May need to alter this pipe to mount oil coolers too so still up in the air. Could bring air from the driver's wheel arch but would need a decent filter or screen on the pipe. Don't really have the climate for it.
Well if dpf already gutted there should be no problem swapping that out computer wise, just have fun with the heat shield and the lower dpf bolts
Yeah will sound evil, still have just the backboxes for now, am having two straight through motorbike style cans made. Just hollow 4.5" cans with a straight perf tube center at exhaust bore size. Gives it a raspy sound on a 4cyl. Not seen it done on a 6 yet so that's the plan, have to just work out where I need the mounts on them.
Are you going to use a universal intercooler? Been looking around for one, the airtec I have is only 2" in/out and not going to choke it down just to use that.