Valkyrie wrote:.
For for record, JDM cars do not have VINs. They only have serial numbers. A VIN is something else entirely. You have to have a VIN assigned to the car when you register it after bringing it to the US..
You do not want to mess with a chassis number or VIN. It is illegal. The Code of Federal Regulations part 565 goes over VIN requirements.
§ 565.14 Motor vehicles imported into the United States.
top(a) Importers shall utilize the VIN assigned by the original manufacturer of the motor vehicle.
The VIN number of a Nissan Skyline is the chassis number. It is located on the firewall of the car.
(b) All passenger cars, multipurpose passenger vehicles, low speed vehicles and trucks of 4536 kg or less GVWR certified by a Registered Importer under 49 CFR part 592 whose VINs do not comply with part 565.13 and 565.14 shall have a plate or label that contains the following statement, in characters that have a minimum height of 4 mm and the identification number assigned by the vehicle's original manufacturer inserted in the blank: SUBSTITUTE FOR U.S. VIN: _____ SEE 49 CFR PART 565. The plate or label shall conform to §565.13 (h) and (i). The plate or label shall be permanently affixed inside the passenger compartment. The plate or label shall be readable, without moving any part of the vehicle, through the vehicle glazing under daylight conditions by an observer having 20/20 vision (Snellen) whose eye-point is located outside the vehicle adjacent to the left windshield pillar. It shall be located in such a manner as not to cover, obscure, or overlay any part of any identification number affixed by the original manufacturer. Motor vehicles conforming to Canada Motor Vehicle Safety Standard 115 are exempt from this paragraph.
565.24 Motor vehicles imported into the United States.
top(a) Importers shall utilize the VIN assigned by the original manufacturer of the motor vehicle.
(b) A passenger car certified by a Registered Importer under 49 CFR part 592 shall have a plate or label that contains the following statement, in characters with a minimum height of 4 mm, with the identification number assigned by the original manufacturer provided in the blank: SUBSTITUTE FOR U.S. VIN:___SEE PART 565. The plate or label shall conform to §565.23 (h) and (i). The plate or label shall be permanently affixed inside the passenger compartment. The plate or label shall be readable, without moving any part of the vehicle, through the vehicle glazing under daylight lighting conditions by an observer having 20/20 vision (Snellen) whose eye-point is located outside the vehicle adjacent to the left windshield pillar. It shall be located in such a manner as not to cover, obscure, or overlay any part of any identification number affixed by the original manufacturer. Passenger cars conforming to Canadian Motor Vehicle Safety Standard 115 are exempt from this paragraph.
http://ecfr.gpoaccess.gov/cgi/t/text/te ... 33&idno=49
And here is a NHTSA newsleter that covers this topic -"Can I Have Two VIN's On My Car or a VIN That Does Not Meet NHTSA's Requirements?" -
http://www.gtrusablog.com/2012/10/can-i ... r-vin.html
The end answer is don't touch it, don't mess with it, don't let anyone from the state mess with it. Call the NHTSA for guidance if someone insists otherwise.