RMA are reporting new and very stringent checking of noise levels at Silverstone, with a "one check and your out " policy of enforcing a 105db maximum, even road legal cars are failing and being sent home. Equally even tighter levels are in place at Bedford Autodrome, making it all but impossible for a lot of bigger engined cars there, and now both Spa and Nurburgring are also enforcing limits of 105db. So get your noise meters out and start checking before paying out good money and being told you cannot play.