I've had my pro chamber in for around a month now and I'm not sure if I'm all that impressed with it. I really didn't notice any power increase the sound is ok, its paired w/ magnaflow cat-back, but its a little too refined for me. I really don't want to weld in new mufflers, so i was thinking of puting in a regular off road h-pipe. Should I? How much difference in sound will I notice?? and what h-pipe should I go with? OR (I know the response I'll get to this) how bout an off road X?