hey have any of you guys have any take or experience on flowmasters scavenger collectors? , it sounds like it does the same as an xpipe would, takes advantages over the firing pulses in the header. this is a cut off old collecter weld on new type of deal.. btw looks like 2 into 1 instead of the typical 4 into 1 flowmaster claims up to 15hp over regular collector sounds like a good idea for a custom turbo header :TU: