This is waste of money!
If it would work, everybody would buy for $ 69.95 35 HP. There is the mass flow meter in between and it will let only a certain amount thru, the same is with the throttle valve. And there are inlet valves and out let valves which also only allow a certain amount of air in/out. Just to say it in very simple terms.
Here a cheaper offer. Buy a Garrett Turbo charger sound for only $ 18.95.![]()
Listen to the sound.
Real HP costs money, whatever you want to buy, sports exhaust, open inlet filters, chips which promise 20 more HP and maybe only give 5-10 and so on.