Here I go again, ;)

I will be having a go at the parallel fuel rail mod in the week but have just thought about fitting and remembered that I have a 5th injector..(WRX RA)

What shall I do with it.
Fit it on at the end of a rail or somewhere else, or get rid as it doesn't do anything anyway. :rolleyes:
But how do I blank it off?

NEXT PROB:

I have been having a knocking sound from my I/C when starting up and switching off the car, This is because I have a STi4 Intercooler on my MY94 WRX. It is knocking on the Brake servo pipe which runs along the bulkhead.
As this is a steal pipe can I remove it and replace with some 10mm Reinforced hose, as the 2 ends are rubber hose anyway.

Or shall I leave alone and remove a bit more from the throttle body.

Thanks again for your help, don't know what I would do without you lot. :)

Scott

Anyone???????????????????????????????