Spin Tech mufflers

Who has heard of them .. i do like the way they sound ...... a very nice sounding mufflers . here a sound bite . I have been looking for a new diff sound on this dart that i am buliding . i have had flow masters.. like the sound but looking for a new and diff sound..

[ame="http://www.youtube.com/watch?v=iV4OPVDTaho"]YouTube - DART SPINTECH[/ame]


[ame="http://www.youtube.com/watch?v=7y5tHp1exn0&NR=1"]YouTube - 540 Chevy w/ Spintechs and X-Pipe[/ame]