Hi anybody got a turbosmart supersonic dump valve fitted to there car.I
Have just fitted one and when your on full boost there is like a whining noise until you lift off or change gear is this normal? noise sounds similar to over boosting noise,but I had a health check done by the jolly green monster a few months ago with the standard dump valve and everything was ok
I don't think it should be like that with the standard one on there is no whining noise,apart from putting the standard one back on any suggestions,
I like the noise I know it's a bit sad
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