warning. Warning will Robinson. Danger ahead.
The silicone wye was designed by me for a reason.

You NEED flex there. I could use smoother pipes too but you
Can conduct too much stress to the TB support causing it
To shear the coupler gasket. Ask me why I think this is true.

There needs to be little distress on the TB.

Some of the polishers have also posted photos of nice clean
Up of the FAT lip on the TB. That is an inch of edge.
This is significant. Car is crazy strong now between manifold
Design and TB attention. Enjoy. Woody