Yes, i agree. The differences are rather significant. In physics, even the smallest things matter. The reason why AEM is so known despite their large price tag is that they have tremendous amounts of R&D done to the Cold air intakes, which ensure that their intake's shape, bends, diameter, length is the most optimal design for the specific car model. Like the general rule of thumb in everything, you get what you pay for. Dont skimp out on car mods, or you'll regret it and come back to redoing it over, which will cost u more in the long run. Why do u think AEM CAI is the best selling intake system of all time, despite the price? there is the very good and worthwhile reason for that.