just bought 05 vinson 5 speed loads of tourqe and power already ...want more ....but without excesive noise ....but i understand its hard to get one without the other...I hear the hmf utility series puts out wicked cool...but louder than hell... heard a little about there ecosystem series....whats the dealio would u get basically the same thing as the utility series just with inserts.. read a little about the fmf powerline...but haven't seen much feedback on the site...also, not sure how loud they are....also does yoshimura make a utility type exhaust..and if so what kind of gains does it put out. just wanting some feedback from others on what they've got ...open to any suggestions.....and does any company make a full system for the vinson or are they all just slip ons.....thankyeah for the info if u reply..g-day

you could take the baffle out for now...see how that works and you'll probley have to rejet it