there is a small difference when going to an aftermarket intake system, however even though its very small the sound of the turbos are nice! 
You will also hear another noise that sounds like an electric saw when you release the turbos... ( it's normal ) so don't panic as I first did heheh. Overall the true difference you'll notice in the intake is when you go single and all that stuff, small difference from stock setup. My buddy just installed his and he likes it. Before he bought his he heard mine as I pulled up on him and thought I had some BOV or something. You'll like it!
DI
You will also hear another noise that sounds like an electric saw when you release the turbos... ( it's normal ) so don't panic as I first did heheh. Overall the true difference you'll notice in the intake is when you go single and all that stuff, small difference from stock setup. My buddy just installed his and he likes it. Before he bought his he heard mine as I pulled up on him and thought I had some BOV or something. You'll like it!DI
