ホームページを見ると適用していると記載ありましたが、念の為Custom Dinamicsのユーザーサポートに車種別適応を問い合わせると、とても丁寧な返信が来ました。

Thank you for the quick reply. We will get this order processed and shipped as soon as possible.

To answer your question, Yes. The GEN2-SSUNV is the correct Signal Stabilizer for a 2010 VRSCDX. This module will balance the load of the bike to maintain normal turn signal operation when LED turn signals are installed.
Please let me know if you have any additional questions.

Thanks again,