That's a great story and all about the oil filter versus dry filter but don't go based on that. Take it from someone who HAS at T/A hood with the functional kit. You have to be cautious about what CAI you get as they may interfere with the extended vent directing the air to the CAI. You may have to trim the box/block off plate if you get something besides a Mopar CAI. You can get any CAI you want as long as your willing to modify it to work with the vent system, don't worry about the filter as if you don't prefer the one it comes with, you can always order the one you want through S&B filters, spectre filters, k&n filters, etc for a fairly cheap price. I would go with Mopar, but thats just me as it's guaranteed to work with the vent system.
Something a little more concerning is the coolant overflow tank, I'm not sure if you own a 2011 or newer challenger but if you do, you'll have to purchase a 2010 coolant overflow tank as the 2011+ will not allow you to shut the hood with the vent system connected to the hood. It's fairly cheap (about $50-60 bucks). I got mine from Luke through steve white motors. I'm here if you need any help or have any questions.
JS1977 is right on point!
I have a T/A hood and opened it up using the Mopar special purpose kit. You should be able to find it on line for about $450-$500. Really easy to install and since the car already comes with the hood "pre-cut" there is no sheet metal to remove. The kit comes with functional grilles to replace the closed ones. Like JS says, this kit will
not work with the factory airbox - you will need to put in an aftermarket CAI kit. Mopar makes one designed to work with their T/A hood kit. When I got mine I got the wrong year CAI kit, so I had to grind both the top side and the underside of airbox to make it mate with the air chute coming from the underside of the scoop. If I had the right MOPAR CAI kit I would not have had to grind anything -
I was just too lazy (and stubborn) to take it back for the right one.
As to the coolant overflow tank issue JS1997 mentions, I did not have any issues with clearnance on mine. I have a 2012 and it fit perfectly with no adjustments to either the T/A kit components nor to any of the coolant system components. Not sure if they fixed the problem in 2012 that was experienced in earlier models - so you may not have to deal with this issue.
One thing I did read somewhere is someone who tried to keep the factory noise reduction pad that comes under the hood in place. Insead of removing it when they installed the kit, they instead cut out the hole for the TA in the pad itself and left it in place. This actually moves the kit attachments closer to the engine components since the pad forms an intervening layer between the hood and the venting. And while the attachment pins are long enough to handle it, it may push they air ducting close enough to interfere with the clearance on the coolant components. If you dont have the pad in place I found the clearance is just fine. The TA functional conversion kit is not designed to be used with the soundproofing pad in place. This isnt clear in the instructions - got this tidbit from a MOPAR dealer. JS - is this a consideration for your installation?
The other factor that might explain why JS had an issue and I didn't is it might simply be small differences in manufacturing tolerances because the kit does come close to the tanks. Mine might have worked just fine whereas JS's may have had a slightly different physical dimension that came into contact with the tank. My advice would be get the kit first - install it, and then if you have clearance issues buy the tank. If you dont then you can put the money you save from not having to buy the tank towards your next mod.
If you go online its listed under Challenger T/A Hood Venting and Water Management System. its designed only for the 5.7L engine. P/N is 82211665AD and the MOPAR CAI PN is 77060003AB. Attached is the install diagram from one of our forum vendors- Speedlogix
http://www.speedlogix.net/instructio...r-82212435.pdf
Everything above is based on my own personal experience - I have done it, its easy, there are no performance issues, and my engine bay isnt dirty since the air is carefully directed into the CAI. The water management system works perfectly - no issues, even on days of heavy rain, driving through a deluge thunderstorm or driving long hours in wet weather. Have fun!