Exhaust whistle?

Contacted Beaudesert about the whistle and they said it's normal for the Patrols to get the whistle after the exhaust has been fitted. It's from the turbo spooling up faster and running more freely.

Don't know why I didn't call them initially :)

Quote:

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Originally Posted by Lonicus

Just went and tested a couple of things, blocked the exhaust for a few secs, no sounds of leaking plenty of pressure. No whistle when backing off if there's little to zero boost. Only when boost builds is there a whistle when backing off. On very minimal boost there's a tiny whistle for a split second just before engine hits idle speed.

So, good call and thanks guys, looks like it's just turbo whistle and I now know what that sounds like :)

Cheers

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mine makes the same noise and mine is not leaking i believe its the turbo with the less back pressure just slowing down easier