007P are recirc valves, quiet.
Mine is that loud on the Blue car due to an uprated TIP, an OPEN cone induction kit, and the K03S turbo conversion, running 21PSI of boost.
The IHI is that loud because its a massive turbo with 27PSI of boost, not 6PSI like a standard Cupra.
Very few people have them that loud, but I quite like it, tis the small amount of Chav in me I guess!
Mike