Bogging in gear at idle

[Justin Maestas]

Need some help, I have a 2016 6.7 that just started bogging down when I come to red lights. Engine sounds like it's under load and rpms start dropping until a little under 500rpm then jumps back to normal. Any ideas what it could be? Recently installed S&B and Edge with attitude. Does it at all levels.

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[Dennis Shellito]

This sounds like the torque converter is trying to go into lockup at idle. I would seriously look into the tune that was used on this truck because from what you have said, it sounds very detrimental to the trans.