Thought I'd add this for others who may come across this. I checked the workshop manual.
It says intake is grey and exhaust is green..
So I went with what I said before:
grey = intake
brown = exhaust
I also noticed the brown (exhaust) is a tighter fit, which figures
**edit - just got word back from fordprobestore.com confirming the above**
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
![Image](http://marcharrington.co.uk/banner2013.png)