HKS Hi-Power SPEC-L II Cat Back ExhaustSporty sound and significant weight reduction enhances the GR Yaris driving performance. 25% lighter compared to stock exhaust system Weight reduction is achieved by using HKS original thin walled stainless steel material for pipes and silencers. Sports sound with straight layout Outside, the exhaust system produces a powerful, bass heavy sound, while cabin noise is eliminated by a silent chamber. The result is an exhaust system that not only reduces