ITS is okay if they also meet all the IT rules. Based on Greg's list comparing allowances above and beyond ITCS:

- the battery has not been moved or replaced with non-oem style battery.

- Wire mesh screens with a minimum opening 1/4"

- OEM flywheel is used

- Stock manual transmission is used with no shift linkage modifications

- Engine, transmission, and rear differential mounting material meet IT rules

- Power steering components are not disabled or removed

Did I miss anything?