The can is "LOUD" at full throttle.

Sound like a gp bike at redline.

Not as loud as the SATO's on my RC51.

The sliders was $85.00USD plus shipping from Japan. If you want them, e-mail Simon at 'nomisimon2002@yahoo.com.' You can see some of Simon's stuff on the speedzilla forum. He goes by simonkobejapan.