Review on High-performance SPEC-D Tuning LED Black Tail Lights for 2014-2018 GMC Sierra – Left + Right Pair by Michael Syph

These taillights look fantastic on my 15 Series Sierra. I like the looks. It's a million times better than the factory. They are very bright on both the LED side and the fiber side. Anyone who has 15 asks where I got them from. These are cheap taillights, so be prepared to seal them with silicone at the back. If you don't, let the water through. They come with a set of resistors for hyper-flashing. I prefer without resistances. I like how it blinks three times slowly and then quickly, people respond better to it. I still don't understand why the turn signals are flashing slowly. The eye picks up fast movements better than slow ones, but how do I know I'm just a whiner. I recommend these taillights if you want your truck to look good and get noticed.