I'm "exhausted" writing this again, but have you recently changed your front exhaust down pipe?
But I got a whistle when under load, when Kwickfit changed my exhaust, it wasn't there before. They only had my word for that.
I guess the line of... I've had this vehicle nearly 20 years and it has never done that before really helped :doh...lol:lol
They removed the front pipe, resealed it... still there.:augie
I said change it for another brand... they did... problem solved.:bow
Now you wouldn't get that service at most main exhaust fitters, so again to name and praise, it was Kwickfit at Brownhills, West Midlands.:clap:clap
PS I have no connection with them, no family or friends work there, they were just a great team of hard working guys, at one point there were three fitters working on it. I just paid the quoted price, I guess I could have tried for "compo" but we had a good working relationship, and they stayed with it till it was sorted.... and so did I, I watched every bolt removed lol...:thumb2
Does yours whistle whilst revving whilst parked? if so I doubt Turbo whistle.
You do need turbo boost ie under load to hear it.
Many years ago I fitted a tubo boost gauge, and after fitting, that acted as a loud speaker, and you could hear the turbo whistle through that, so I put a clamp over the rubber hose under the bonnet, to reduce the air flow... problem solved. It didn't seem to slow the response time down much either.
