Steeda's cold air kit features a new velocity stack for improved airflow, bringing more oxygen into the cylinder for better combustion. Designed to work with the Mach 1 shaker hood scoop, this model produces measurable results on the dyno. 555-3121$209.95 www.realspeedauto.com Ph.631-563-7325 All parts listed are for the Ford Mustang unless otherwise noted. Copyright 2018 Realspeed Automotive Inc. All rights reserved.