I've been researching nearly every different intake and every forum with an intake topic. I know that this is heavily discussed and hard to decide on.
My question is, if I'm to purchase an intake like aFe stage 2(link below) for $320 and it just connects to stock airbox, what makes it special? I'm seeing that with a lot of the popular intakes (aside from the bank breakers that are $450+). Isn't the stock airbox restrictive because it definitely has a restrictive appearance? What makes these any better than more frowned upon intakes like Injen or AF Dynamic's $160 intake(link below)?
http://performance.importrp.com/i-2...wObjEL6MQyi-nr9rw5B6RfJ4meVpHvBrigaAm0B8P8HAQ
http://www.ebay.com/itm/15-16-VW-MK...ash=item3d21261826:g:yVMAAOSwYIxX8~gy&vxp=mtr
Also, essentially from my take on these more expesive closed intakes that go all the way to grill, what would be the difference from just buying something like the aFe or AF Dynamic intakes I linked and just dremeling out the driver side of the airbox? Are there any cons or negative side affects to this? I live in a rainy climate but so long as there's a drain hole under the intake, wouldn't it be doing the same thing as APR closed intake with just a cheaper, different look?
One other thing I'm curious about since I'm here, why do Injen intakes have such negative reviews on the forums? I've seen on many threads that Injen is actually more restrictive than stock intake, it just makes more noise.