The Subaru Impreza STI Turn Signal Flasher provides clear, reliable blinking to ensure every lane change is obvious to nearby drivers. The small Turn Signal Flasher sits inside the fuse box, sending power as soon as the stalk clicks. This makes the bulbs flash at a perfect rate that drivers instinctively trust. The early Impreza STI integrated a thermal Turn Signal Flasher with a heating strip that flexed in sync with each flash. It is an ingenious yet durable design that helped Subaru earn a reputation for electronics that refuse to die. The newer iterations of the Impreza STI have transitioned to the solid-state Turn Signal Flasher. What this means is that instead of using moving metal, a smart relay and timing chip are now applied, which fires rapidly, can handle LED bulbs without hyper-flash, and importantly, can tolerate vibration from hard cornering that has become a hallmark of Subaru performance culture. The Turn Signal Flasher in every Subaru derived from the rally-bred Impreza STI is a dedicated component that gives DOT compliant timing. No matter what generation you drive, this Turn Signal Flasher fits just right. The Impreza STI of multiple model years has the same plug pattern and mounting points, allowing for a quick and worry-free installation. The Turn Signal Flasher protects efficiency by using minimal current, allowing the alternator to devote its energy to other systems found in many Subaru sport sedans. Safety gains are just as important as lighting performance gains because a consistent flash rate does not create misleading signals and does allow surrounding traffic to predict an Impreza STI's swift exit. The Turn Signal Flasher features an audible click and built-in surge protection to set it apart from the other parts suppliers. This just goes to show that Subaru pays much attention to the little things that allow the driver to push hard while being seen and safe.
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