I am split between buying and installing a intake system in my expy and not even bothering. My question to those who have an intake system (FIPK, AIRRAID, AIRFORCE1) is the improvement worth the money spent. Or should I just leave in the Drop in K&N Filter.

I already have a exhuast system (Flowmaster 50 Series) and it has imporved, and the growl is not bad at all. I just want more horses, and better gas mileage for my money.

~Q~