a couple weeks ago i decided to make my own rotated kit. Here is a picture of the uppipe. I used stainless piping however i used mild t3 flange and 2 bolt flange. The welds are not the best looking because i put an extra bead to make sure nothing would crack. I dont really care how the outside looks as long as the insides are smooth. I was going to get it ceramic coated but i just dont believe it works anywhere near the level heat wrap does.
