Changing the HS CAI to a warm air setup..lets see..I have the JWT airfilter and the Tenzo filter..both will work but the Tenzo filter is kinda tight. I use the Tenzo filter as my Warm air so all i have to do is drop the lower half pipe and slap on the Tenzo filter on to the maf adaptor.
First thing i do is turn the steering wheel to the right all the way. I remove part of the splash guard so i can have access to the lower half of the filter.
Second, i loosen the fittings for the lower half of the tube.But i find it easier to loosen all of the fittings all the way up to the throttle body, so that i have a lot of play and adjustment to work with.
Third, I slide the lower half of the tube through the bottom part of the hole you cut out for the CAI.
To make things easy i usually use a light coat of (spray type) white lithium grease for all fittings. I have the Stillen GTR Front end so im not sure how much more difficult it is with the stock front end.
Total time for me for conversion is approx 20-30 mins.