Could you please specify which parts did you install? And by Gen 2 were you referring to 2017+ or 2015+?
When I drove my mom's 2016.5 GT I thought here suspension setup is nicer -- softer, and quieter than my 2013GT.
Now, here is where I am confused -- This rear shock absorber says that fits 2015 and 2016 only.
https://parts.coxmazda.com/p/Mazda_2016_CX-5/Shock-Absorber-Rear/75165402/KA0G28910G.html
While a similar rear shock absorber basically says 2013-2016 compatible
https://parts.coxmazda.com/p/Mazda_...44/KD3528910K.html?clickSource=relatedProduct
Then, there is a 2017+ version
https://parts.coxmazda.com/p/Mazda__/Shock-Absorber/70205838/KB8F28700B.html
I am at 127k miles. thinking ahead of replacements of struts and other suspension parts. What I am hoping is that I can install newer 2017+ or 2015+ parts on a 2013 AWD GT.... and hoping that it would make the ride softer....
The OP was talking about top mount for rear shock absorber on gen-1 CX-5 which can’t be had separately but you can get such part listed on gen-2 CX-5. As for rear shock absorbers, there were design change on rear shock absorber along the years which does get confused. The best way to verify is you provide the VIN to your Mazda dealer and the parts guy should give you correct p/n of shocks for your CX-5.
For OEM rear shock absorbers #24 in the diagram here are part numbers for gen-1 CX-5:
KDY5-28-910C Shock absorber for 2013 ~ 2014 Mazda CX-5 to 5/13/13.
KR27-28-910H Shock absorber for 2014 ~ 2016.5 Mazda CX-5 from 5/13/13, Type 2, without AWD.
KD35-28-910K Shock absorber for 2014 ~ 2015 Mazda CX-5 from 5/13/13, Type 1, with AWD.
KA0G-28-910G Shock absorber for 2015 ~ 2016.5 CX-5 from 11/03/2014, with AWD.
For OEM rear shock absorbers #1 and shock top mount #4 in the diagram here are part numbers for gen-2 CX-5:
KB7W-28-700B Damper rear for 2017 CX-5 to 06/22/2017, with FWD.
KL2F-28-700A Damper rear for 2017 ~ current CX-5 from 06/22/2017.
KL2G-28-700A Damper rear for 2017 ~ current CX-5 from 06/22/2017.
TK48-28-380C Shock mount for 2017 CX-5 to 10/01/2017.
TK52-28-380C Shock mount for 2017 ~ current CX-5 from 10/01/2017.
It’s not likely you can use front struts, but It’s likely to use the rear shock absorbers from gen-2 CX-5 for gen-1 CX-5. See here:
CX-5 Strut/Shock replacement