Big RED Burban
OBS Enthusiast
hello i have a question about the coil on the tbi engines, they all have a metal frame around the coil that is bare metal and always seems to rust my questions are what purpouse does it serve and can i paint it to keep it from rusting also why is the top of the coil made out of that semi clear white plastic instead of the regular black plastic like the rest of the coil
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