PART NUMBER: 421827. Best of all, this system will not void your factory warranty! ROUSH Cold Air Intake Kit for Mustang 2.3L Ecoboost. Included in the kit is the air filter with clamp, injection-molded lower air box/tray (featuring the ROUSH logo) with installed EPDM foam hood seal, blow-molded clean air tubes and all required mounting hardware.
