Well you'll enjoy this then :lol:
Remove the intercooler if still top mounted
remove the throttle cable
remove the vacuum hoses and brackets that connect to the rocker cover and inlet manifold
Disconnect the wiring to the injectors etc
disconnect the fuel lines to the fuel rail (carefully as they'll have pressure in them)
remove the dump valve pipe that comes off the plenum
remove the bracket that holds the power steering pipe to the back of the inlet
remove the plenum chamber cover this will require a cut down allen key or allen key bit and spanner this can be quite arkward to do
with the plenum off you can undo the bolts that hold the plenum to the Y shaped bracket on the back of the engine.
Now here you have the option to remove the Y shaped bracket or struggle with it in place a bit if you decide to remove it you'd be best to jack the car up remove the downpipe and oil filter and undo the bolts through the gap where the oil filter is theres also a few pipes and wires clipped to the Y bracket that need removing
Once the Y bracket is out of the way you can unplug the wires from the idle control valve and warm up regulator valve.
you can now unbolt the manifold from the head getting to the bottom bolts is arkward and is easiest with a rachet spanner available from Halfords once you have loosened the bolts its best to let them drop as there not magnetic but the washers are so can be removed with a magnet
the manifold should now be loose but you will now need to remove the pipes from underneath it that go to the warm up regulator valve and this is probably the hardest part and even harder to get back on :roll:
Refitting is the reverse of above exceptI use magnetic nuts to refit the manifold as they can be positioned with a magnet and twisted on with your finger tips
This is only the sorta job you would tackle if your confident in your abilities as its not easy to say the least tbh its probably easier to remove the engine to do it but will obviously take longer
I'm sure I've missed a few things to so expect so head scratching moments lol