to answer your question, there's no difference with the intake. Honestly most modern vehicles require a tune to make bolt ons worth while.
The main reason I went with the Volant was I wanted something enclosed that brough air in through the stock fender vent. The Volant was it. Also I couldn't stand how difficult and annoying it was to get the factory air box lid off...let alone get the thing back on.
I made my mind up one morning when I litterally had to remove the upper metal brace above the stock airbox to get the lid back on...said the hell with it and ordered the Volant.
If you were gonna go with the volant I wouldn't blow all the money on the full kit. Just get the box/filter for now. You can always add an Airaid or AirDoc tube later on.
Also I would recommend a pre-filter for it also. You'd be surprised the amount of crap that gets in there.
Also the Volant adapter IMO is a pile of crap. I thought at first they sent the wrong one. Sent a replacement for free and still didn't work like it should. This was my fix, silicone adapter with t-bolt clamps.
Let me know if you have any other questions.