I did not have to cut the tunnel any for it to fit, just had to do some clearancing near the front of the tunnel near the firewall seam. I did shorten my frame stands to lower the engine in the subframe and also used CPP adjustable plates to adjust the engine position. I would have liked to go lower on the engine to improve drivetrain angle, but had to compromise due my dynatech headers hanging so low.

If I was to do it over I would use the speedtech tunnel piece just to make fitment even easier.

We dont have that luxury here, as cutting the Tranny tunnel would need an engineers report to register the car.
I need to be sure it'll fit without cutting it up...