Ozrider (Les) Big Bore exhuast, 1st in world!

I use 1 per cylinder as intended. I do use a little copper rtv around the outer edge before clamping it all down. Just a precaution.

Let's pipes haven't leaked at the head at all, on and off 3 or 4 times with the same gaskets now.
Thank you
 
Hell ya!! Mesmerizing!!