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2011 R/T intake: Stock airbox best?
So I know this topic has been beaten to death, because I know I've spent hours on many forums reading about everyone's opinions, supposed facts, subjective assessments and even those diesel filter tests.
As I understand it now, it seems like there is little benefit to changing much about my intake system, seeing as it is already a "true" cold air intake which utilizes a sealed system that draws ambient-temperature air from beneath the front fender, outside of the engine compartment.
Presumably, most of the "cold air" intake aftermarket options are just taking advantage of the hype, as they usually are comprised of a shorter intake tube and an exposed filter, which draws in air from the engine compartment. These utilize only a thin plastic "heat shield" to seal off the intake from the hot air in the rest of the compartment, and seem to be more aptly called "warm air" intakes.
It would appear that the systems with air boxes and tubes down to the fender would be better equipped to collect cooler air, i.e. Volant, Cervinis, stock air box.
My questions are as follows:
Do the shorter, "warm air" intakes allow for greater air flow? If so, is it at the cost of greater particulate intake?
Does the air temperature difference between the fender and behind the heat shield inside the engine compartment make that large of a difference? Or is this mitigated by the greater air flow?
If there is no significant difference in air flow, is there a significant difference between the air box systems?
If the stock air box really is the best system to run in terms of both air flow and temperature, what filter would be the best in allowing the greatest flow/least particulate intake (I've heard bad things about K&N)?
Lastly, if there is no difference in air flow, and the warmer air of the engine compartment is less efficient for the engine, why do people purchase these "warm air" intakes, and how can parts manufacturers claim the HP increases that they do?
Sorry for the lengthy questions and preface, I'm just trying to make the best decision for my baby! (and my wallet!)