im thinking of buying a cold air intake , I saw one for around 30 bucks on ebay i was wondering does it really make a difference if i buy a 30 dollar one or a 100 dollar one arnt they all the same neways???

 

they are relatively the same, removes the restrictive stock intake/resonator. I'd go with the cheap one and spend the money else where on REAL power adders. Intakes don't make that much power, just depends on what you want your engine bay to look like when you pop your hood. IF you ever pop your hood. Keep in mind some intakes cost more because they have CARB #'s. So that maybe what you are really paying for, that and the name.