thanks gihan as a subaru fan do you think it is possible to use nos on it ,anyhow i studied about make nos system my self dry system is easy bt wet is little bit diff i thing i only need few things small fual nozel,electic gate value,regulator and some other sutf, bt little bit afaid to use such a thing on my ej20 engine otherwice cylinder head will air bond gihan is it posible to ues it track in sl if yes,under which section, under modified?