Why oh why do car manufacturers put these stupid things on a vehicle. I know, noise pollution, pollution. I am running a Steeda CAI. Read about these mods in forums, and thought what the heck I'll do it. Very satisfied, noticed a quicker throttle response, manual shifting from 2nd gear to 3rd gear is where I really noticed a gain !!!!! I pulled the resonator out, looked at it and thought, ..."How does the vehicle with one of these get any air ???? Little holes on the front, with the main opening facing the passenger side. IDK, in no engineer but Geez FOMOCO !!!!