Automotive Nitrous Oxide System — Engineering Signoff (Vehicle Modification)
Form number: Mod-Plate-N2O
Recreational automotive nitrous oxide injection systems (NOS, ZEX, Nitrous Express) are not directly licensed but the vehicle modification triggers engineering signoff. The bottle is a pressure vessel (typically 10 lb / 4.5 kg) and requires AS 2030.1 retest, secure mounting, blow-off port and fuel-system upgrade compliance — for road registration the engineer issues a mod plate.
Official source
infrastructure.gov.auRelated topics
automotive nitrousnosmod platevsi 6vassmod code nengineering certificateperformance vehiclenitrous oxide bottlenos system installpressure vessel regocar mod engineeringturbo nitrous kitvehicle modification approvalengineering cert carperformance mod signoffpressure vessel
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