RPO Code B4H

[richardz]

I have a 2001 convertible ( that GM-Holden imported new as a sample before it all got too hard and the project abandoned ) with
an RPO B4H - Modification, noise control, export. Does anyone know what this mod is? The car sounds like a vacuum cleaner - you virtually need to look at the gauges to know its running.

 

[Rob]

I have a 2001 convertible ( that GM-Holden imported new as a sample before it all got too hard and the project abandoned ) with
an RPO B4H - Modification, noise control, export. Does anyone know what this mod is? The car sounds like a vacuum cleaner - you virtually need to look at the gauges to know its running.

B4H : MODIFICATION, NOISE CONTROL , EXPORT

Taken from: http://corvetteactioncenter.com/tech/rpo/rpo2.html