Tried the OS pipe for the .15 cvrx, tried a drilled out stock pipe. Yes the Trinity pipe is necessary, you can try the Associated but if the engine wants to run hot and not have much power then switch. Good luck.
Yes, that is the kind of header he uses. It goes almost straight up to miss the shock. Then he used exhaust coupler like normal. Also you can redirect (bend) the header a little, pretty easily.