Thanks Vinh :) jeffy not sure about dB but they sound similar too a euro horn, Merc BMW etc. They shi7 all over standard Toyota horn.. Around $100 shipped but I paid around $80 because I had a choice of SAL or EMS, not in a hurry so took the cheaper option.. Go "Toyota premium horn" on eBay and heaps come up, shows for different models but they're all the same, if any difference it'll be the size of the bolt holding it on,that's all.. My link My link