Yes, but I doubt that is your problem. You wouldn't see that with any stock or most aftermarket pipes today. And if you did it would likely only occur at near wide open and on a longer pull. When I was younger we ran tight pipes on short drag races because it builds heat fast and makes horse power.
Think not enough fuel or too much air. A couple of other things I would have checked if this was happening to me is: TPS as Ron said, and Bad exhaust temp probe as these two sensors will effect fuel delivery. Also low fuel pressure, or dirty fuel filter. All of these would affect both cylinders so you should be seeing a lean condition on the other cylinder that did not die. A bad injector or plugged injector would affect only one cylinder and depending on which injector it was, only the low high flow signal (two injectors per cylinder one for high flow and one for low flow). Make sure all 4 injectors are plugged in, had a friend loose one of these motors because one of the electrical connectors was loose on his injector. That got him a new motor. Buy a simple ethanol fuel checker. You can get one at an auto parts store. It just a glass vile and you put a touch of water and then the gas and shake, very cheep but they work great. If you are seeing greater than 10% ethanol in the fuel you buy, this could be the problem.
A bad throttle body boot with a crack in it will create a lean condition. A bad crank seal will do the same.
The problem with the new sleds is we tend to forget sometimes they are still nothing more than an air pump and every thing we have ever learned still applies, just the inputs changed.