Heard a slightly different noise when driving the car from cold. I wasn't pushing it at all, but at the point where boost starts to kick in and help, I heard a slight hissing/whoosh, then the boost/induction type noise kicks in as normal.

Its not affecting performance in any way, but its just something a "little" different that my ears picked up this morning.

If it's a hiss,remember that little lad on the news who found a snake in his cornflakes :eek:

Be careful when investigating Jason

Worth checking all the hoses under the bonnet to make sure they're properly connected and don't have any splits in them Also maybe that your air filter is sat properly. Would have expected any of those to impact performance, but it can't harm to check!

Chris