AFE uses a mix of performance and “bling” on their intakes. For example, the Magnum Force Stage 2 was designed to provide the best performance as its main goal, with no regard to keeping it quiet or material cost. It is their highest performing intake. The fact that is the loudest is what some folks go for as well to increase intake/turbo sound.
AFE also has the Momentum XP which is more for looks than power, as evidenced by the actual output numbers. It also is the quietest of the 3 options.
Then, you have the Momentum GT intake which was designed to be economical, plastic vs metal construction.