Nikos,

I used the NMP header from Central Hobbies which will work with the Hatori pipes as well.
The header aligns the pipe dead center in the pipe tunnel. Just a note on mounting the engine;
on my OTOP the nose is angled for right thrust but the firewall is installed square so I had to
make a shim to angle the Hyde mount the correct amount for the desired right thrust. I used
an ES Composites carbon fibre pipe which is fairly long but I believe any length pipe will work.

tommy s