EDIT_____Disregard please, th headers I have are 3 bolt flange and the yypipe should work fine.

I have a pair of shorty hedman headers that I ordered a y-pipe for. When I looked up the y-pipe, I looked up the part nukber on summit (68470) and ordered the pipe under the suggested tab portion. Now that is is on the way I see that the pipe is a 3 bolt flange. I am wrong here or are these parts not compatible?

Can I just bolt the headers the the y with a gasket and no reducers? Or do I have to send the pipe back for the other type. This set up is temporary any way so I would like to just make it work so I can install my motor.