Yes you need to modify the airbox because the JLT was designed for the older hood not the newer redeye hood that comes on all charger HCs since 21.
Alternatively you can order the redeye version but I would skip JLT (They are cocksuckers) and buy the LMI intake. #fuckjlt.
Alternatively you can order the redeye version but I would skip JLT (They are cocksuckers) and buy the LMI intake. #fuckjlt.