Getting exhaust for friends NSX.. he was saying something about a Taitec?? Anyone have sound clips of this exhaust system as well as others? I know it may not bring out the true sound on a computer but heck..it gives me an idea! Would would you recommend as a nice crisp (not too loud but louder) sounding exhaust. He also said something about installing "test" pipes. is this good/bad in sound and performance? Thanks