I like the overall construction of the box. Very well constructed. However, I am not at all happy with the lid. It does not sit flush, it is 'bowed' up in the middle. Not sure why because it is not being prevented from laying flush. Secondly the cover is not clear like the Volant intake box I had in my 2500 nor like the box you advertise on the web. I like the throttle response. I'm still reviewing my mpg at this time.