So R888's or AO48's? If so, insurance wouldn't consider them a mod. It's the same misinformation regarding winter tyres being incorrectly considered a mod by those on the phone.
Indeed, anyone ringing their insurance company asking them if they would consider cut slicks a mod, when they are just normal E-Marked tyres is frankly, not someone I would take any car insurance advice from.
	
 
 I'm planning on servicing my car soon so was thinking of using these panel filter, as they are reusable and since they let more air in they might add more responsiveness and a nice sound would be a bonus.