What are the diffrences hp wise between a CAI and a drop in air hog? or would it be possible to run a ricepipe directly into a stock air box with a performance filter?

Usually a cone air filter will have more surface area then a performance 'drop in' air filter. But that isn't the whole story... If you look at your old filter, their are areas that are really dirty and other areas that look brand new. A cone air filter is more efficient at using the whole air filter.

so what if you took off the front part of the stock box, and expose the front of the filter? just a thought .

i would not advise that....the accordian tube is not designed for optimal laminar flow, and the filter will just suck in hot air also not a optimal design...best bet would be a rice pipe Cone filter and a a good heatshield to draw in the cool air

Having a gutted airbox and drop in K&N myself.... I have noticed that since the front of my airbox isn't completly open I noticed a small square dirties very fast compared to the rest of the filter; restriction in it'* self there. Also the according tube I'm sure isn't close to being the best for airflow. Drop in K&N with a gutted airbox will give you a nice increase even with the butt dyno; but a CAI has to have a slight edge over a OEM airbox.

Ed

Laminar flow through the filter and whole intake setup translates into velocity (very much desired for power).

The cone filter is round, and air enters evenly distributed around it'* circumference. A drop in filter cannot achieve this, as the air comes in to the rectangular filter, passes through, and has to fight to get to a hole that is usually offset to one side of the other, then bump along through an accordian flex-tube.

That answers my questions, thank'* again you guy'* for this valuable info. It'* nice to be able to ask these questions without you guy'* making me feel stupid!

First of all 92+ H-bodies have a very good airbox compared to many cars. Secondly most cone filters I've seen do not have much more surface area then the stock one. A square patch of dirty filter near the opening actually PROVES that the filter is not being a restriction, otherwise the air would spread out more evenly. As for flow advanges of a cone filter, they are so tiny compared to all the other factors, that you shouldn't worry about it.