MBRP is a deisel and snow machine specialist. In BC, I can buy these from a deisel RV dealer or a place that sell snowmobiles. They appear to be a great system and pretty cheap compared to most.
'07 4.7L, QTII, duel power & butt cooker seats, remote start, class IV tow group, tow hooks, factory skid plates, Light Greystone..........Poweraid Throttle Body spacer, 6000K HID low beams & fogs, AVS Rain Guards, Flowmaster 40 muffler, Daystar 2" lift, Bridgestone Revo 2 31" x 10", Cobra CB, front sway bar disconnects
My Youtube: http://www.youtube.com/user/cnorrss