ROUSH PERFORMANCE COLD AIR INTAKE KIT. Roush Performance Cold Air Intake System for Mustangs. Designed for the 2011-2014 Mustang GT 5.0L V8, 2012-2013 Boss 302 5.0L V8, and 2010 Mustang GT 4.6L V8, the Roush Cold Air Intake Kit includes a high-flow air filter (oiled) with a clamp, a new MAF tube, an airbox tray featuring an installed EPDM foam hood seal, a heat extractor foam insert (for 2013-2014 users), and all the necessary mounting hardware.