as you can see the exhaust stops just about the middle of the front fender. so all the exhaust is being expelled to the underside of the car. what is happening particularly in this picture is the exhaust is burning outside of the engine in the pipe. The degree and grind of the cam lobe tells when to open the exhaust valve and light the A/F mixture. In this case it is also a nitrous car, so the exhaust is much more visible with the tune up he has in the car while the nitrous is activated. As it burns a lot hotter than if it were on fuel alone. Also the number of nitrous kits the car has also effects this, which i believe he has 2 on here. That is as simple as i can put it.
Thanks for the clarification! Makes sense..









Loving it so far. Only have the EFS 18-200, 50mm f1.8 and a 28-70 f2.8 L. Got my eye on a 70-200 f2.8L once the prices drop on the older versions with IS. 

