FMF quiet core insert for Powercore 4 - quiet?

Has anyone tried the quiet core insert for the powercore 4? It looks like it's about $25.00 and I was wondering what the TT feedback was.

Awesome! I run it with the spark arrestor screen option. Great throaty sound but still around 96 db! :)

Thanks Indy. I was going to go ahead and get the Q, but really don't want to blow coin on another muffler. I'll do the quiet insert and replace the packing with Q packing.

04 WR450F, Powercore4 with the quiet core insert and its 94db

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