Not sure what you mean by "turn them back" the only thing different from the original is , I welded up all of the holes that I previously drilled and opened up the far end of the tube.
The origonal had 4 holes drilled in the bottom of the long tube and 3 hole drilled in each one of the tailpipes........tailpipes never changed , they always pointed toward the rear of the machine!
Anyway , I will test this one out and if goes well , I will make a new one..........this one is pretty hacked up now!