The best modification for your PA-14!  The VG's lower stall speed, increases aileron control and more.  Tail strakes virtually eliminate spins.  Check out our website for a video showing aircraft flying with our Vortex Generators.  You'll want this kit for your aircraft! (http://www.cubcrafters.com/video)  Includes STC, Flight Manual Supplement, template, installation instructions, drawings, Vortex generators, hardware, tail stakes....everything you need to install this great kit!