HKS Hi-Power Spec L II Muffler Exhaust System - GR Yaris Gen 1 Accessories This combination of temperature and

This combination of temperature and density gave us an 8bhp increase on our test cars as well as an incredible induction noise

Available in different colors for more choice in finishing off the engine bay accent

An updated version based off of the long-time flagship Mono6 Sports series

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and the development team at Forge Motorsport have been able to work their magic once again to find further improvements

HKS Hi-Power Spec L II Muffler Exhaust System - GR Yaris Gen 1 Accessories This combination of temperature andThis is the second version of the Hi Power Spec L series muffler. A renewal that allows for the muffler tip finisher cover to be exchanged in between different materials and style for the ultimate choice in the finishing touch. A pure sports spec series muffler designed with the ideal combination of hi power and ultra lightweight spec.