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What happens if you replace a Porsche's brake pads with iPhones? Nothing good.

YouTubers at EverythingApplePro replace a Porsche 911's brakes with a set of iPhone 5S and 4S handsets. What could go wrong?

Internet filmmakers EverythingApplePro replace a Porsche 911's brake pads with iPhones. EverythingApplePro/YouTube

Here's question that you've probably never asked yourself: what would happen if you replaced a your car's brake pads with a bunch of iPhones? The guys on the EverythingApplePro YouTube channel wanted to know so badly that they grabbed a Porsche 911 and 8 iPhones to find out.

In order to pull off this stunt, the 2002 911 Carrera's calipers were upgraded with enlarged hardware from a 911 Turbo, which has enough space to accommodate the iPhones. Epoxy was used to affix 911 brake shims to the phones, completing their transformation to iBrakePads and holding the handsets in place in the calipers.

Four iPhone 5S handsets were used in place of the front brake pads and four more iPhone 4S were used at the rear axle. On one side of the car, the phones were positioned with the screen touching the rotor. On the other side the rear panel faced inward for, you know, science.

The 911's ridiculous iPhone brake pads were tested at 20 mph, 40 mph and, finally, 60 mph and then removed and checked. You probably have an idea of what happens when fragile smartphones with volatile lithium ion batteries are exposed to high pressure and temperature. Spoiler alert: It's not good, but you may be surprised by how well the phones held up. Check the video above to see for yourself.