Ok, a lot of this is not true. You will not get bad gas mileage, all you're doing is increasing your airflow, the reason you might get worse gas mileage is because of tuning, you're naturally going to run more fuel. They are not that bad to tune if you get someone who knows what they are doing and you do not have to tune them all the time, in fact once they're tuned you really shouldn't ever have to tune them again, they are still fuel injection, it's not like you're running points and a carburetor. They do not have a problem getting debris in them, they're very easy to get a mesh filter and run over top, we had made some for my friend's civic out of suzuki gsx 600 ones that worked very well. The benifit is equal air flow per cylinder which provides for better tuning and better throttle response also equating to more power. You also don't need any internal work done to run them, yes high compression and some valvetrain work is neccesary to get the full potential from them but not needed, there are lots of cars that run ITBs stock, BMWs Mercedes, some volvos just to name some, you don't notice them as much because they usually run a airbox over them. Anyway long post but had to clear up all the bullshit and misconceptions people have about these. Very beneficial and they are a great upgrade if you have the money and take them to get tuned properly also a standalone is not necessary, any air fuel tuning will work fine, they're not electronically control, the fuel is.