Installation of the Banks Power Pack System, specifically the torque tubes is not a particularly difficult job for the average DIY'er. It took me about 9 hours to install because I like to take my time and dilly dally allot.
The tools I feel are required for this job are, an air compressor and a good 1/2" drive impact gun (a cheapie won't cut it) a sawzall (my Dewalt 18 volt was perfect for this) A pair of HD jack stands, a standard tap set, and the usual metric and standard...