exhaust cutouts, worth it?

puts a big grin on my face when I pass a group of Harleys at speed. They seem to hate that for some reason.

I have just found the reason to justify the expensive!!!! THANK YOU...LMFAO I can hardly wait.. and I certainly don't have to worry about the Harley dudes catching me with thier 60hp machines...LOL Going to put them on a 500ci E body