What has 2,500 HP and no mufflers?

At the rate power increases are going when you're reading Jalopnik in 2037 we'll probably be talking about a Ford Focus with 2,500 horsepower. But now it's not time to look back to 1937 when we did it the old fashioned way: with displacement. » 5/31/11 2:30pm 5/31/11 2:30pm