I was wondering... What is the difference between the intakes on ebay that are like 18 dollars and the ones that are close to 200? Also when installing them I noticed that there are 2 hoses going into the stock intake and there is only one place to plug a hose into on the aftermarket ones, how do I go about hooking that up. I know this probably sounds like a really stupid question but I don't want to mess something up or set off a check engine light by not having something hooked up properly. Please help me!