[aotte1]

I plan to call my exhaust shop and confirm if 2.5" exhaust can fit above the trans rear cross member. It would need to curve up some from the header exhaust position. However, it looks like the type of exit connection these headers have allows for some outlet angle adjustment. I will measure the clearance above the cross member to the floor pan and post. Not sure if the LY6 transmission rear cross member clearance is the same as for all trans. With number you can compare to yours.

Les