I have a spark 2018 without ibr but I have manual reverse can I still get extended vts even without ibr? Or what options do I have? Can I get ibr after market?

Hello all, newbie here. Glad to be part of this group. I have a 2019 Spark 2up and will soon have a 2020 Spark 3up, both with IBR. I got a good deal on an Extended VTS kit that was just delivered and I want to jump right to the install. Any thoughts as far as which Spark should get the VTS -...