The HKS Legamax Premium Cat-back Exhaust for the new 2017+ Civic Type R is the very first in their complete product lineup!
This exhaust increases piping diameter in each stage, making it a 3-inch main pipe to dual 2.4-inch pipes into the mufflers and finally out of dual 3.8-inch Burnt Titanium Tips. Overall the exhaust reduces back-pressure by 50%, this allows the turbine to spin more freely from a low RPM and improves overall power and response across the power-band.
This exhaust system has been engineered and designed to handle up to 540 ps (532 HP) without any power loss, so it's great for high power builds. It also features a dual muffler and small resonator that is guaranteed to provide zero drone for deep throaty note while still having a comfortable ride.