Passenger side exhaust blowing cold air

[blacllkllsi]

2008 GT/CS w/13k miles. Just noticed this happening today. I installed a DOB kit a few months ago and have not driven the car since. Only starting it occasionally to let it warm up. I just got around to changing the plugs to HT0's today and started the car to let it idle and burn the PB blaster spray out. Walked around the back of the car and notice a little condensation and white smoke coming out of the passenger side exhaust only until the engine warmed up a little. I put my hand up to the passenger side exhaust and it was blowing cold air out, it did this even after the engine reached operating temperature. Is this normal?

 

[RocketcarX]

I would wait to worry until some thorough test driving