Dumb kids who think this and that makes the car faster....

I go to school with a kid that has his moms old Honda Accord he claims that his Bosch Plat. Plugs add 40hp his tubes that go to the cyl. As he calls them(plug wires) add another 10hp his OEM aftermarket cold air intake adds another 20hp and his cold air exhaust is a good 35.
How can people be this dumb? I don't understand. 105hp in addition to the standard v6.
O Ya the spoiler is on the way it will make it go faster on the interstate.