Many installers have used the Vauxhall Corsa adaptors to put 6.5" speakers in new-age Imprezas.

Does this mean that these speakers will slot straight in?

Car Audio Direct - Pioneer TS-Q172C Vauxhall - Speakers (http://www.caraudiodirect.co.uk/pioneer-tsq172c-vauxhall-p-5914.html)

Anyone volunteer to test it ;)

i'm gonna hijack your post, people whos got the corsa adapters..
is it corsa b or c adapters?

If it's the fronts your talking about then you can make the apators out of MDF.
Just use the existing speakers as a template and bob's your uncle :) .
I've currently got a pair of Infinity 5010cs speakers up for grabs of which I'd happily chuck in the spacers I made if anyone's interested :thumb: .

Mark.