Rear Shock - Widetrack
 

No, not the usual post about knocking!

I'm looking to replace the insert of my driver side rear strut. Literally just the gas chamber thingy and the metal rod it slides up and down - the rest of the strut is not required.

What cars do I have to choose from to find this part? My car is a 2005 STI so widetrack, but does the widetrack part change the internal of the strut? Could I get a strut insert from any newage car for example?

This part:

https://lh6.googleusercontent.com/-J...329_143210.jpg