Car stalling after header installation

[The Beast 2014]

So, had my performance shop drop in BBK headers and catted mid pipe yesterday. They also replaced the from O2 sensors with factory Ford parts from the dealer because the stock ones were welded in there tight. They didn't get a chance to tune it, that will be Tuesday along with a 3 inch pulley and injectors.

The car stalled on my three times this morning on the way to work. Ideas why? I am guessing it's because the headers were installed without a new tune. When coming to a stop the car will sometimes bump around 550 to 800 rpm and crap out on me.

Is this tune related? Spark plugs?

 

[Grabber]

If you didn't tune the car for headers, that is a good reason there.

I would not drive it until you get a tune for the headers just to be safe.

Spark plugs should be fine depending on the miles you have.

 

[gt5.0coyote]

Most probably tune related.

 

[H-TownMachI]

The tuner will need to adjust the transport delay.

 

[The Beast 2014]

Thanks, well I do need to drive it home today. The park plugs are NGK 1 step colder and they only have about 1000 miles on them. So, I will drive it home today and let it sit until Tuesday.

 

[clc44]

They could've given you a base tune set up for the headers. I have an email tune for mine without cats and it drives great.