im planning on doing mine during the winter as it sits in teh garage hibernating......i was wondering, in doing research i foudn that the flowmaster 17100 (muffler kit) requires 15100 which is the resonator......will a magnaflow resonator fit in plcae of the 15100? or do i need the FLOWmaster one? why are magnaflow res alwasy recomended? are they higher flowing then the flowmaster?