Volant 176366 High Performance Cold Air Intake System - Compatible with [Vehicle Models] - Improve Engine Power & Fuel Efficiency - Perfect for Off-Roading & Street Racing

I've been researching and reading reviews for a long time before getting this unit. Unlike most JKU owners, I tow an 18' Scamper Eco trailer. It weighs 3360 lbs. and the package makes for a go almost anywhere RV. Last weekend, we were at a mountain lake, the road of which would be difficult at best for cars. The main reason I went with the CAI setup was out of control intake manifold temperatures during towing in the mountains. I have an old cell phone on the dashboard running the Torque app which Bluetooth connects to a diagnostics port dongle. (Literally a "poor man's" $40 version of a certain $500 product that does the very same thing) Climbing up steep mountain grades, I've seen intake temps of a horrendously high 185 degrees, with tranny and coolant temps of 240 degrees. Something had to give. Installation was pretty easy. The MASS air sensor is tricky, you remove it from the old tube by twisting to unlock it. It used spittle to lube the sensor's O-ring and CAREFULLY worked it into the grommet of the new tube. Make sure the sensor sits broadside in the new tube, not inline. Install the silicone rubber tubing onto the main tube first, THEN onto the throttle body fitting, and tighten the throttle body clamp FIRST. The new tube goes on at a little bit of an angle, and will have to shift position after the throttle body is tight. Make sure to use the existing bolt on the fuse panel mount for the air box, there's a hole there for it. That end is easy as the silicon tubing with the flex hump slides on easy so you can position things at that end before sliding it back onto the junction. The EGR hose straightens easy and goes onto its new fitting without cutting it. I reused the OEM tube mount bolts with P clamps to secure the radiator overflow hose. First thing noticed: intake temps have plummeted just driving around town. Now, the intake air temp is around 12~14 degrees higher than ambient instead of the usual 30+ degrees it was before. I have just installed it, so haven't taken the trailer anywhere yet. I will update in the comments as soon as we go on our next camp trip. Intake noise is now a nice growl when I get on it, but it isn't too obnoxious. (I was afraid it might be loud and annoying, but it's not) It's silent when driving easy. Another thing: The OEM intake tube has huge chambers hanging underneath it, for what I assume is sound deadening. The oversized things HAD to have partially blocked radiator air, and now they're GONE. If that alone doesn't help with lowering temps, I don't know what else will. The Donaldson Powercore cleaner element is found in heavy equipment, semi trucks, and tractors all over the planet, (in various shapes & forms) so it's actually a major improvement in filtering over the OEM setup. I was surprised (disappointed & now, nervous) in the amount of super fine dust that is inside of the OEM intake setup I just removed. (19k miles on my 2014 JKU) I had to clean the MASS air sensor, and wipe out the throttle body with a clean cloth which turned black. DO NOT GET this CAI with an oiled element filter, they allow fine dust to leak through; read reviews on Jeep forums etc.Update July 12, 2016: Intake temps are running less than 15 degrees higher than ambient. Drive easy, and the intake temps are less than 8 degrees above. That alone is worth this setup. Notice the large air chambers on the OEM intake setup. They hang in front (behind?) the fan, and certainly block incoming radiator air. Getting on the gas pedal, it REALLY moves out, and after this much time, I don't think I'm imagining it. The growl matches what it's doing too, and a hard run, as in approaching red-line, and it sounds like it means business. Breaking the back tires loose and leaving stripes is almost too easy. Notice the photo of the inside of the OEM air cleaner housing. That fine dust was GETTING PAST the OEM filter! Mine still has fine dust all inside the OEM tubing, and as mentioned above, I cleaned it out of the throttle body when doing this upgrade. It would behoove anyone reading this to remove your air tubing and check it for fine dust. Do it NOW! If it's all clean, then hurray. Notice the "acoustic" cover is not there. It's in the garage rafters. Removing it made very little difference in intake temps. (It was already tossed when I installed the CAI kit)