I heard the Stromung on a B13 and it sounded nice, my personal experience with Greddy on SR20s has been positive, it gives the car a nice deep mellow tone kinda like my Magnaflow on the Maxima. Greddy on a Max with no cats and a ypipe sounds like shit. Stillen exhausts all sound like ass. Like I said make ur own custom exhaust and save the $$$, on top of all U get to pick what muffler U want, and how U want it mounted. Mike Jez