The Super Dragger series by HKS with 60mm piping and 120mm 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.