I'm trying to get a mate to come around to hold the rev's at aaround 1500rpm so i can listen to the actuator so i can see if the licking is coming from there, it kind of sounds like a playing card in a bike wheel, but metal.

If it is the actuator what is a decent replacement? would it be worth doing the boost solenoid at the same time?

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2006 CS9 tuned to 225.6HP at all four
2004 MV Agusta Brutale 750