This is the kit:
https://www.forza-moto.com/en/p/1162...onster-s4r-996
Do you have the liner under the tank? Even with it they do still roar quite loud. 748 and 916 make the same noise too.
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Roast Beef Monster!
Termignoni and Bucci - Italian for pipe and slippers!
S4 Fogarty, S4R 07T, 748, Series 1 Mirage
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