hello everyone. i have the 2018 tri glide. i would like to put on a high flow air cleaner to gain a little better performance but i do not want to have to buy a tuner. Dk customs has the high flow 828 that states no tuner needed if leaving stock exhaust. I have the opportunity to purchase a screaming eagle high flow air cleaner, part # 29400245A from guy that took it off his bike . my question is , does anyone know if this will work without doing the tuner. the hd website says tuner is needed. ? he had the full stage two , so doesnt know if it will work by itself.