Yeah, it's mostly for the name that you pay for, and also much of the time the Ebay ones are made of plastic compared to the metal many of the name brands are (besides K&N, you pay $100 for each letter lol). There are really no benifits between the different brands, the fenderwell intakes all give the same. Now for some cars, the intake can be extremely restrictive, the V6 Mustang intake isn't that bad designed for a stock, quiet setup, but if you plan on having a built NA motor without turbo or supercharged, then a CAI is needed to supply the air for things like nitrous, H/C/I, ect kits.