The hottest selling exhaust on the market next to the GT Spec. The Super Drager series by HKS features the biggest diameter piping in it's class, which is 95mm and 130mm tips. This is definetely one of the most flowing systems in the market, and it offers a nice and rumbly deep tone. Each Drager exhaust is constructed using an unchambered (SUS 304) stainless steel muffler assembly, high-quality welds & large-diameter aluminized steel piping. This system comes in a single outlet only.