what i also did on my S&B is i had some foam rubber insulation that i stuck on the box to seal it up to the fender. i bought it at home depot and it was about 3/4" thick and sticky on one side. That should help keep the under hood air out also.
I am truly lost I sold my AEM intake I was looking at getting the S&B. I am running the stock airbox right now.
I am leaving tons of power on the table my truck smoke like a freaking forest fire. I think there is some gains in the intake system I have a LB7 so it has the flat panel filter. Maybe I am just waisting my time and I need a bigger turbo
I was hoping the S&B would clean up some smoke and give me some more power