Well I am running mine in series. Worst case if it doesn't cool enough the lines are already run and all it will take is cutting the outlet line and barbing into the external cooler.

Anyway, cooler is in place, lines are ran and I am in the middle of putting the bumper cover back on. Am struggling getting the metal "tabs" (if you will) to snap back into the fenders. Figured I needed to step inside and cool off for a minute since the heat was getting to me anyway. Will go back out in a few to attempt again.

I cannot complete the install at this time. I ordered 3/8 double barbs and what I ended up getting appear to be 5/16 and I do not feel comfortable that they will be secure enough. Also the 3/8 fuel injection clamps I got are not big enough either. They are supposed to fit up to 5/8 outside diameter hose, but when the hose "swells" from being pushed over the cooler they don't fit. I assume the same will happen when I get the right size barb. I'll just double clamp using worm clamps.

Once I get the bumper cover back on I can at least drive it since I didn't cut the stock line yet. I'll go get the right barbs and small worm clamps so I can cut and splice in the external cooler.