I have a 2016 crew cab 2500 6.4 hemi.Has anyone done a 5.5" or 8" lift on a 6.4? I'd really like to do an 8" lift but was told the exhaust gets in way of drive shaft so I talked myself into the 5.5" and when I went to choose my shocks on the BDS lift kit site it said it would need exhaust modifications? Has anyone done custom exhaust work to fit their lift?