? Increase the stock performance of your Harley-Davidson Trike with Vance & Hines Power Duals in chrome 212-781 or black212-782? Installation of the Power Duals on 2009-13 Trikes requires the use of this Tri-Glide Adapter Kit, 2014-16 models come stock with exhaust extension? The Adapter Kit extends the Vance & Hines touring head pipes to allow for proper fitment on your Harley-Davidson Tri-Glide? The Vance & Hines Tri-Glide Adapter Kit is made in the USA