My friend has a MGP Growler on his '11 250R. The build quality on it is not that great. It is loud as hell with no insert. I opted for a Two Bros. with the P1X powertip. It sounds great, not too loud. And went you get on it, it sounds awesome.
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'11 Green SE - 2 Bros Blk Series CF, Factory Pro Jet Kit, Spiegler Lines, ZG Windscreen, Pazzo Levers, CW Fender Elim, Custom LED Integrated Tail Light, Protons, OEM Seat Cowl & Ti ProBolts.
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