AEM-21-203D-XK AEM AIR FILTER; 3"FLG, 6"B, 5"T, 5-5/16"H; FILTER TOP. If you’re searching for an increase in engine performance, look no further. AEM® is about much more than just airflow. Our intercoolers also have an extra port in the intercooler discharging tube for auxiliary devices like boost pressure sensors, temp probes, or water injection nozzles.
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