i have a 2004 yamaha raptor with a stage 1 cam i had the fmf ti4 with the power bomb header but once i put the cam in it got really loud so i bought the fmf q and put the powerbomb header on that the sound is ok but the power is really soft on the bottom and mid compared to the ti 4 so i would like to bye a hole system with good bottom to mid and not so loud the level dosnt bother me but the people around me dont like it so i was thinking about the lrd pro4 but i dont know if its really loud any body know of n e thing thats good

 

Your not really going to find a powerful pipe that's really quiet, unless you go for a white brothers or yoshi tri oval titanium. The white brothers seemed kinda quite to me, but it might only give you about the same power as you got, depending on how many discs are on it.