Lowered Dually Duramax!

For sale! 2010 GMC 3500HD SLT with 190k equipped with 6.6 Duramax listed for $22,900

[@Martinbuilds]

I would like it to be the same as this dually

[@Martinbuilds]

i want to download my duramax 3500 hd dually 2014 what kit do i need