I don't have a horse in this race. The process of customizing one of my cars is a process of trial and error. I have been through 4-5 different exhaust systems, 5 different intakes, two different rear motor mounts, etc. etc. etc. I want what I want, how I want it, and I acknowledge that there is no "one size fits all". I will post my personal experience with a 2j intake and their "support" below. The TL;DR would be - you get what you pay for, and every tool has it's job. Beyond that, it saddens me to see all the mud slinging and impotent, infantile prattling and accusations bandied about. Grow up and use your words like the grownups you are.
My personal experience
I liked the sound, intake temps were cooler. After I received the part, I called and emailed 2jr to ask if there were any sort of instructions. Never received the slightest response. After installing based on patched together forum posts and youtube videos, the routing of the lines for my 2017 were still a mystery as I believe I was an early adopter. No matter how I tried to route the intake and seat the filter, it always squeaked and buzzed. Tried again to call and email. No responses. Then I started getting check engine lights. I emailed, and tried to call to see if it was normal, or if I should try to do something. Spoke to a lady at their phone number - she didn't know, said she'd have someone call me back. Nobody ever did. I removed the intake because the buzzing and squeaking made me uncomfortable, each squeak or buzz was a "wear" point, and I didn't want to have to worry about rubbing through something important or rubbing through the intake and introducing dirty air or metal shavings, so I took the 2j off. I tried one last time to email and call, with no responses. When I recently moved, I threw the spare cowl I had ordered and the 2j intake into the trash. I would rather they charge twice as much and provide some semblance of installation instructions and support, because the experience turned me off of the company completely. I am not a cost sensitive person, the couple hundred dollars I spent on the intake were inconsequential to me - but I am a *value* sensitive person, and there was no value to what I spent. Teenager me would have been stoked on the sounds of the 2j intake, but adult me has to look at how poorly it fit and how poorly it was supported, and acknowledge that teenager me was a dumbass.
My opinion
The product would install easier and fit better if they split it in half with a silicone joiner in the middle, or simply retooled to make the pipe section out of silicone hose instead, so it wasn't buzzing against the car. I guess it's fine for a race car, and they advertise it as such, but for a normal, every day car - it's a poorly supported, ill-fitting piece of kit that one should think long and hard before purchasing. You get what you pay for most of the time, and in this case what you get is maybe not the best quality in the world. Every tool has a purpose - the 2j intake is probably great for track use and appears to be what it's intended for. Putting the 2j onto a daily driver is kinda like using a screwdriver as a hammer - it'll probably work but it's not the ideal tool for the job.
Food for thought
Personally, I take umbrage with the lack of responses and support from the vendor, but then again the intake is super cheap, so I guess I got what I pay for. I'm used to a much higher grade of customer service with products I purchase, but I also generally pay a lot more. I wouldn't say don't buy it, or do buy it, but I would say - research it, talk to some people that have owned it for a while (so the honeymoon is over) and form an opinion from that. Don't purchase *anything* while you are lusting for it - that's like going grocery shopping while hungry - just a general bad idea. They desperately need a factory "how to install this thing" guide or video. Like, today, if they are going to sell it to the public, because some of the stuff you can fuck up while installing it is expensive and potentially catastrophic (straining the harness/plug on the sensor behind the engine that the pipe rubs on if you aren't careful and unplug it first).