AKRAPOVIC EVOLUTION LINE S-H4E1-FDHLT

AKRAPOVIC EVOLUTION LINE S-H4E1-FDHLT

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

Honda CRF 450 R 2025-

Honda CRF 450 X 2025-

Manufactured from lightweight, premium, high-quality titanium alloys with varying thicknesses in the sections to ensure optimal protection and reduce overall weight, the system is 26.5% lighter than the stock exhaust.

A new profiled surface optimizes the sound to meet the FIM noise limit of 109 dB for competition, and adds strength and durability to the silencer, while delivering a deep, full sound that reflects the balanced pulse of the single-cylinder engine.

The silencer is as large as possible for the available space. This allows for greater sound insulation, mitigating the environmental impact and facilitating better exhaust gas flow from the combustion chamber with minimal restrictions.

The increased strength offered by this design enhances durability and provides greater resistance under the most demanding conditions. It offers improved response across the entire rev range and optimal acceleration feel, giving the rider a great sense of control.

Power and torque have been increased by an additional 1.8 kW (2.5 hp) at 10,300 rpm and 1.5 Nm at 7,900 rpm, as recorded on the in-house dynamometer in consecutive tests with a stock exhaust system.

The Evolution Line (Titanium) exhaust features a special surface-printing technique for the logo for greater durability and a titanium header with an integrated resonance chamber for optimal performance and sound, covered with a newly designed titanium heat shield.

Installation is simple, ready to use, and requires no reprogramming.

The exhaust system is compatible with the Honda CRF 450 X.

Noise measurements were obtained on a stock 2025 Honda CRF450R equipped with the Akrapovič Evolution Line exhaust system.

FOR CLOSED COURSE COMPETITION USE ONLY. NOT FOR STREET USE.