Bilstein Shocks for BH5 Wagon GT yr. 2001 compatability

[Apache]

I have a Legacy GT Wagon that I need to replace my front suspensions soon. I want to replace with Bilstein what the car originally had. I suspect it's a JDM

 

 

Subaru dealership only have right hand piece. So have been looking to import

 

Are Bilstein suspensions across BH5's of 2001, 2002, 2003, 2004, 2005 2006 the same?

 

Subaru deakership gave these part numbers. For left and right shock. Can other part from a revision etc fit?

20310AE22 front rh

20310AE23 front lh

 

If I import I have a one off chance, no return