I'd stay away from those products and learn to live with what you've got. Every car has a MAF sensor that is very expensive to service and repair. If you change the intake system, it affects this sensor and you should be prepared for the worst.  

The rule about air intake systems is: If you interfere with the airflow, you interfere with the engine's performance and will damage sensitive components. 

I would NEVER use this and would advise you against considering this. Your PCM is programmed for your car's peak performance and changing it will bring expensive results.