GTINTHEBOX Led Circuit Board C-Rings Dual-Color Switchback for 2015-2018 Subaru WRX STI Headlight DRL and Turn Signal Light

The media could not be loaded. Way better than the factory t10 bulb plus it adds directionals

So for the short and sweet review: It works. The LED's are bright and look great! But there are some problems with the soldering on the back of the LEDs, problems with the turn light relays (they also don't look like they would keep water out) and the LED's are hard to fit under the bevel.Overall these work and look great. They are bright and visually make the car look way better. But I suspect there will be some problems in the future with the relays once it gets cold. (The turn signal won't work unless its warm out) Some things to keep in mind when doing this upgrade. If you want to use the Modules that came with this kit. You should wrap them well to keep moisture out. They don't look like they will keep water out. I can see gaps in the exit's for the cables. I would also take a look at the back of the LED's where the wires connect to make sure the soldering isn't just holding onto the wire with a few strands. Mine did, I had to resolder the wires on. Once I got the headlights out getting these to fit behind the bevel was a bit of a pain. They fit, But it was really hard. Be prepared to deal with trying to get the bevel to snap back in without breaking it. (TAKE YOUR TIME, The plaster can easily break) For the switchback relays they work. But I suspect they were made with really cheap capacitor's once the sun goes down and it gets to around 55F the turn signals won't work when locking and unlocking the car. (They do work once you have the DRL power going through them) So over all these are pretty good. But keep in mind you might have to do more then just install them. I would recommend maybe making your own switchback relay or getting the Diode dynamic's relay to replace them later.Wiring: this is pretty easy. All you need is 2 fuse taps, Wiring, 2 Diode rectifiers and 2 vampire taps. For making your own harness connect the 2 fuse taps with 2 Diode rectifiers then connect those together then send those wires to the red wiring coming out of the switch back. Connect the black wires to ground. (You can connect them together and ground them together to make it easier to ground and wire) Then for the turn signal connect about a foot and a half of wire to the turn signal yellow wire coming off of the switch back and vampire tap it into the hot wire going to the turn signal. Finally on the passenger side under the headlight you'll find the DRL relay (Its a metal box with fins) Unplug that to make it so your c-lights are your only lights running for your DRL's. One finally note make sure you seal all your wiring really well to protect against water. The areas these are installed in get a lot of water inside of it.

To wide at the bottom of the C light lense to rigid to fit inside the lense, no flex so can't fit contour of the light fixture.Lights are bright and function well but then won't fit in the lense

I installed them in the housing but I tried connecting the wire but they won’t light up. If anyone has any advice please let me know.