Roush Mustang Cold Air Intake Kit (05-09) 4.6 402099
Increase your 2018-2020 Ford Mustang's performance with a ROUSH Performance Pac! | ROUSH Performance Blog
Just got a 2021 Gt thinking about buying this is it worth it? Also don't want to void my warranty so this seems like a good option to add a little hp :
2005-2009 Ford Mustang GT 4.6 V8 Roush Cold Air Intake Kit System 4020 – Blue Oval Industries