The cold side: Use the small 90 off the BPV tube going down with the L pipe connecting to the J pipe with straight coupler. The radiator hose will be on top of the elbow. I tried under but it still touches, so I figure better on top with heat rising. You will have to bend the little sensor mount flat and the pipe will still contact the back of the fan housing and be very close to the shifter weight. I installed washers between the bolts and the weight to lower it about a 1/4 inch. It's a tight fit but the PG kit is also very tight, as many have posted about.
Hot side: I used the long 90 that they sent me for the turn down by the oil dip stick and used the longer still, cold side pipe off my TMIC to make the connection from the straight pipe going down, to the J pipe. The two 45 couplers they sent were not used.
The kit should come with two long 90's and one short 90.
I have no leaks as my car is holding boost and hauls ass. The kit could and probably should be called a custom kit rather than a Altered Custom kit because it uses only off the shelf parts. I have black pipes with blue couplers and looks great. I plan on powder coating the valve cover black to match the pipes, should look good.