I had a normally aspirated Crossfire. I built my own cold air intake. The hardest part was finding a silicone elbow that worked and fit properly.
It seemed to work well.
I purchased an SRT that had a single needs wings intake.
The quality was very good. I decided to upgrade to the dual tubes with the larger filters.
I could have built my own, but I felt the quality was worth the price. Using the needs wings set up also eliminated any guesswork
As a person, Rob was very easy to deal with and answer any questions I had.