can anyone advise me on the location of the coil packs on my00 standard turbo impreza, also how i can check if they are working correctly.

coil packs are the connectors to the spark plugs, theres 2 on either side of the block (down by the battery & air inlet box)
These are bolted onto the rocker covers. Remove bolt and pop them off.

my00 there is a coil on top of the inlet manifold with 4 red ht leads running to the spark plugs. 1 coil as it runs wasted spark iirc.

David