Please be noted during Installation:
For starters, anyone saying this made their signal worse...didn't install it correctly. There are 3 wires that need to be popped off their connectors, they are held on by small dots of glue. Please use a small screwdriver and pulled the glue away from the connectors and pull up on the wire and they pop off (don't be afraid to use a little force, if they are on there properly it'll take a tug). 2 of those wires connect to little square antennas which are held on with glue again (you remove these).
Please pull up on the antenna while chipping away at the glue with screwdriver and they come off. The other wire is connected to the original antenna which you remove. Now here comes the part where you need to focus...snapping these 3 new wires onto their respective bases. You really have to snap them on or they won’t work.
(People having range issues after installing this mod probably didn't push down hard enough so these new connectors snapped tightly into place).
Once you have them tightly in place...pull up on them...if they come right off they are not on properly!! They should stay on there solidly when you pull up on them. Once you are sure they are on there tightly put a dot of hot glue on the connection to make sure they stay put. After that reassemble the controller and enjoy the range boost this setup will give you. It works, as long as you do it right.