HKS Exhaust System - High Power Spec L II - Carbon or Titanium Tips - GT86 & BRZGT86 & BRZ Exhaust System HKS High Power Spec L II The exhaust comes as standard with burnt titanium tips, carbon tips are available as an extra. These come in a separate box unfitted which you will need to fit yourself. HKS lightweight design has reduced the system weight by 50% over the stock exhaust system. The low exhaust pressure design is capable for 350PS making this exhaust ideal for both supercharged and turbocharged GT86 & BRZ. Main material