Here's pics of the Zcar's engine in and out of the car. I hylighted a couple things I found noteworthy. Now I'm no expert, but this looks like a true dual exhaust, and a factory cold air intake... run strait to the front of the car. The guys at Stillen said they thought the intake/exhaust combo would be the main difference between the Z and Altima, and of course the ECU... So perhaps when the Z comes out in August, we will be able to upgrade a few things with factory parts, and get the 280 HP that the Z car boasts... it is the same engine after all.