Yeah, I took that header
off a Losi NXT, then I put a CVEC header
& pipe on the NXT. 
That pipe is a secret
weapon, very high security. I could tell
you, but, I would (you know)
The header that came with
the pipe was a bit off (in the thread
department). You have a machine
shop, maybe you can fix it.
Give me your mailing
address, I will send the header to
you. 