AEM X-Series Wideband UEGO AFR Sensor Controller Gauge - 30-0300 fits_2014-2018`Subaru`Forester By adding an additional cooler

By adding an additional cooler and 0

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Dual free-flowing mufflers are used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque

Constructed from authentic 3K Twill-Weave (2X2) Pre-Preg Carbon Fiber the diffuser is finished with multiple layers of high-gloss UV-resistant clear coat providing exceptional durability and an unmistakable sleek aesthetic

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AEM X-Series Wideband UEGO AFR Sensor Controller Gauge - 30-0300 fits_2014-2018`Subaru`Forester By adding an additional coolerFaster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune. AEM's Wideband Controllers with X Digital technology can reduce deadtime and improve the performance of your vehicle through more accurate AFR tuning. Deadtime is the delay between when exhaust gas composition changes and when that change is reported by the O2 sensor. While flow of exhaust gases can affect deadtime, it is not the only