The ones I'm seeing tying into the part number 90295666 are the Sachs 996696, which is no longer available it seems, and TRW JCS681 link below.
https://aftermarket.zf.com/en/aftermarket-portal/our-catalog/search-by-vehicle/#/article/JCS681?languageID=4&brandID=14,22,32,35,68,126,161,294,8888&countryID=GBI originally ordered KYB RJ6226, which the equivalent TRW is JCS625, which the size comparisons are below:
TRW JCS681: (Cross matches to 90295666 / Sachs 996696)
Diameter 1 [mm] : 10,25
Diameter 2 [mm] : 15,95
Diameter 3 [mm] : 10,3
Length [mm] : 269
Outer Diameter 1 [mm] : 152
Weight [kg] : 3,2
TRW JCS625 (The one I originally ordered)
Diameter 1 [mm] : 10,25
Diameter 2 [mm] : 16,1
Diameter 3 [mm] : 10,25
Length [mm] : 262
Outer Diameter 1 [mm] : 158
Weight [kg] : 3,2
Even if my SL isn't working, or is partially working I'd prefer to get the right springs anyway. Looked everywhere and the sachs and TRW ones are all out of stock or have a notify when available button. Only other one I can see that is available is quinton halzell over 100 bucks per spring.