If I had a lift, 20 minutes might be more realistic, but I don't. I also have to use regular manual wrenches on most of the DP to turbo bolts as my impact doesn't fit in that tight of a space for 4 of the 5 bolts. I would plan for much more time, and make sure you have another means of transportation in case you strip or cross-thread something. It requires an 8mm wrench (for the intercooler hose clamps, but a screwdriver works too), a 10mm (heat shield, BPV, and intercooler PCV line bolts), 12mm (intercooler and back end of the downpipe nuts) 2X14mm (turbo bolts - 5 of them - 2 with nuts on the back, 2 at the back end of the DP for those bolts), and an O2 sensor socket for, well, the O2 sensor. I think you can use a 7/8" or something too, but I had the socket so I don't remember what size it is exactly. I hope that helps.