Fitment Information Ford Mustang GT (2018, 2019, 2020, 2021)  GAINS AND TESTING Average RWHP gain over stock air box: 20-30 Specs & Features CARB Status: NOT CARB EXEMPT (Does not ship to California) Computer Tuning Required: YES INTAKE TUBE WITH MOLDED IN MAF JLT's 2018-2021 Cold Air Intake is better than ever. Fully computer designed to optimize space and for best fit and finish. Large 5" filter inlet with radiused end for smooth air flow across the MAF. MAF size is 120mm.Tube measures 4.5" at the throttle body side in preparation for larger after market throttle bodies. HEAT SHIELDFully Roto molded heat shield and included fresh air duct to the grille designed to keep inlet air temps as cool as possible. AIR FILTERWe use only the best air filters made by S&B to our specifications. We love S&B's tapered flange design and Powerstack filtered ends. With a huge 5” opening on the tube we needed a huge filter. The result is a monster 5x7” filter with built in bellmouth for more airflow. TUNINGA JLT specific tune is required with this kit. EASY INSTALLATIONThe design, instructions and online video (see Video / Installation Tabs) helps make this an easy install. KIT INCLUDES: • JLT Black Textured Intake Tube • 5x7 S&B Powerstack Air Filter Red Oil• Heat Shield with duct• HD Clamps & all needed hardware Redline360 sells only genuine and authentic JLT products.