Honda CRF 450R/RX 2021-24 Evolution Line Full Exhaust System (Titanium) S-H4MET16-FDHLT

Custom made to fit the limited space available inside the motorcycle, this system combines performance and durability for extreme conditions and the rigors of off-road racing.

Constructed from lightweight, high-quality titanium alloys, with multiple thicknesses in the sections to ensure perfect protection and reduce overall weight, the system is 26.5% lighter than the standard exhaust. A new profiled surface influences the sound to meet FIM competition noise limits, adding strength and durability to the muffler while delivering a deep, full sound that embraces the balanced pulse of the single-cylinder engine.

The muffler is as large as possible within the available space. This allows for a quieter sound, which reduces the impact on the natural environment, while also facilitating better flow for the exhaust gases to make their way from the combustion chamber with the least possible restriction. The added strength created by the design aids durability and provides greater resistance under the most demanding conditions. It offers accentuated response across the entire rpm range and optimal feel when the throttle is opened, giving the rider a great sense of control. Power and torque levels have been increased with an additional 2.1 kW (2.8 hp) at 9,750 rpm and 1.8 Nm at 9,460 rpm recorded on the in-house dyno in back-to-back tests with a standard exhaust system.

The Evolution Line (Titanium) exhaust features a special logo embossing technique for increased durability and a titanium header with an integrated resonance chamber for optimal performance and sound, covered by a newly developed titanium heat shield. It's a simple plug-and-play installation, with no remapping required.

FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR ROAD USE.