The Volant Cold Air seems like a well made unit. However the installation instructions were horrible. They provided absolutely no information on prepping the vehicle for installation of the air box. When you spend this kind of money for something that requires installation, you would expect decent instructions. I would definitely not buy this unit again due to the lack of installation instructions.
Caution on instalation
I have a 2009 titan, the bolts in the kit are 1/8-1/4 in to long and if i had not checked prior to tighting they would have craked the manifold. It dose have a small whisle but not irratating and pretty kool,people always look.I have driven several miles and no MPG incress infact i lost a bit. HP and responce is great.....yes i reconmend for the HP but not MPG