Trip to the dealers today to look into a pulsating booming noise I'm getting at speed. Initially thought it might be the factory tyres but 4 new Goodyear Efficient Grip Performance haven't sorted it. Had a spin in a 150 ST while I was there to compare the noise. You'd really miss the extra poke of the 184.
Does this sound like a flat when your going over 60mph? I find I get that when it's raining at speed but I only tend to hear it when I haven't got any music on.. Obviously the tyre isn't flat but it's like an up and down sound?