Apex Lowering Springs 40mm for Audi A6 C6 4F Avant front from 1216kg Less S S6

Model: A6 C6 4F Avant front from 1216kg Less on SLine S6. Important Notes: Max Front axle load from 1216kg, Less lowering on S-line. Type: C6 4F. My car has a sports suspension, and has already been lowered from the factory, how should I estimate the lowering specified by Apex® ?.

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