I've been wanting to chip this car since getting it a couple of months ago. For me, the challenge was how to mount the digital board around the center front pivot of the motor pod. When centered, the polarity switch only would fit in the pocket between the pod mount screw and the body post. This put the leading edge of the chip half covering the body post. I settled on a compromise of shifting it off center some, risking that the LED may not trigger the lap counter and lane change LED's. If that's a problem, I have some loose infrared LED's I can remote mount, or swap to a Slot.it two screw front pod.
The chip came from a frequent eBay seller and sometimes slot forums contributor. It was a takeout from the new Corvette C7R so it was the smaller chip complete with new style micro LED's mounted on individual PC boards. In order for the light to shine through, I dremeled small holes through the body plastic to the back side of the lenses. The fronts had to be removed and a silver reflector removed, I then quick glued the lense back on. The PC boards are held in place with hot glue. The first test showed lots of light bleeding through. Taking a tip from Carrera, I painted the surrounding area with silver paint to block the light. Even on the light weight, thin Racer bodies, you can't tell it's been painted from the outside
The camera angle exaggerates the offset some.
I painted the underside of the body with silver paint to eliminate light bleed through.