I had this one on my 2013 manual. JPC Racing Mustang Line Lock Kit 1469 (10-14 GT; 10-14 GT500; 12-13 BOSS 302) - Free Shipping 1469
It worked great at the track and I was able to do John Force burnouts in my manual.
Here's another experience I had concerning the line lock. https://www.allfordmustangs.com/forum...s-tonight.html