I installed a votant and notice on the first drive that it had a better thottle responce and the noise from the intake was just right. As far as HP i cant tell.

 

Volants are usually a decent peice

 

I have had it for about a week ot two now on the car and love the sound and the throttle responce is better.

 

I'm running the 63-Series Air Charger. Great sound, more pick-up. Installation was not difficult.

From the K&N website:

63-1114 Product Specifications
Product Style: 63 Series Aircharger Kits
Estimated Horsepower Gain: 21.09 HP @ 5216 RPM
Replacement Filter: RF-1042
CARB Exempt: No
Weight: 10.4 lb (4.7 kg)
Product Box Length: 18 in (457 mm)
Product Box Width: 18 in (457 mm)
Product Box Height: 12 in (305 mm)

 

Ive had luck with AEM brute forces in the past. They are available for the magnum as we speak and available at truckxpressions.com

 

With the PCM designed as it is today, there is no silver bullet for any power increases with the exception of a supercharger or turbo.
That said, there was a ton of tests run via a Dyno that showed all the popular CAI's don't do anything except add a cool sound. They do nothing for power, speed or response. The dyno proved it warm or cold..they add nothing. Of course with the exception of sound. When a programmer finally comes out hopefully later this year, then we will be able to re-program the computer to allow for the increase.. The PCM that the LX cars have now "learns" the mods and adjusts the air/fuel mixture to make sure they system keeps constant. Good for DC, bad for all of us...hence the reason for a programer to hack the PCM.

So what does all this mean..buy all the mods you want, but please don't expect any real increase until someone finally hacks the PCM..

 

something to keep in mind about the open box intakes (the filter is very exposed) is that yes, they allow more air to be sucked through the filter, but it tends to suck in the hot air from under the hood. you'll still get power increases, but not as much as if you had an closed box intake with a ram air feeding it..anyone get any gains from ram air yet?