So I’ve got a manual bf xr6t, bought a day ago and decided to give it a stab, pulled 2nd gear through to 5000ish rpm and just before I let the throttle off to change to 3rd it let out a burbling noise like the auto fg gear change, no noticeable drop in power or rough running afterwards but just wondering if it is something to worry about or I’ve just hit a limiter of a sort?