Im thinking of installing a digital boost similar to the one below, I know OCT make one for the S4 and S3 but at $400 i think its too expensive. The LED's are available in any colour i choose and can have a seperate boost sensor for chipped cars so the gauge can read up to 3 bar if necessary. Not sure though whether the gauge should display PSI or BAR ??
what do u guys think of it ??