My exhaust isn't as loud as you think it is. The GP style shorty exhausts are louder. Mine is perfect. Low, deep rumble at low RPMs but absolutely rips at high rpms. Leo Vince has a great reputation. I'd go w/ Leo over Jardine. I know that the Jardine exhausts for the 07-09 600/750 GSXRs have a huge problem cracking and breaking.