I done Oulton there last month with FE, and yes they test every bike as you line up to go out (made me late out for the session).
There was a guy with a DB meter (Oulton Official) and a pole that measures your bike at 1mtr? at an angle, you have to rev the bike to two-thirds. My R1 with full Leo Vinci system passed and its quite load, although my instructor did have an SPS and said he might fail if they have to test him
Andy