Hey isaacslaw,

In what area on the front of the compartment the YS kept cracking the wood? Do you have a pic of it? I have a YS 110 also haven't install it yet but want to reinforce it first, some of the guys did add extra wood to the firewall but your the first to apply glass cloth. Also how much weight add the pitts compare to the stock muffler that comes with the YS? Thanks.