Developed on a dynamometer and tested on track, this 4-Stroke header for twin-pipe systems, designed for the WEDIRT chassis with Honda CRF 450 engine (23-25), offers improved performance compared to the original. With its enhanced bending and optimized tube diameter, it expels exhaust gases much more efficiently than the stock version. This header is made entirely from high-grade stainless steel and can only be installed with the corresponding Doma silencer for your quad.

Renowned worldwide for performance and power, the Doma exhaust range has won over many quad riders such as Romain Couprie, Matthieu Ternynck, Randy Naveaux, Alexandre Giroud, Jeremie Warnia, Davino Bruneel, Kevin Saar, and Marc de Vries.

Doma exhausts are made in France, in workshops located in Calais (62100). They are intended for competition use only and are not approved for road use.