Instructions 

1. Attach the led tail throat with the buckle to the original car exhaust pipe.
 
2. Adjust the position, tighten the buckle and check if it is firm.

    led exhaust pipe

    3. Find the light line, the red line is connected to the positive pole, and the black wire is connected to the iron.

    4. Installation is complete, test light is working properly.
      Please make sure of this before you order it.