This silencer can only be installed with the Doma header.

Developed on a dyno and tested on track, these ACS 4-Stroke Silencers for the LAEGERS dual exhaust system (Yamaha) YZF450 engine (2023–2025) and for the stock YFZ450R chassis equipped with the LAEGERS kit (YZF450 engine 2023–2025) offer improved performance compared to the stock setup. With enhanced bending and optimized pipe diameter, they evacuate exhaust gases much more efficiently than the original. These silencers are made entirely from high-grade stainless steel and can only be used with the corresponding Doma header designed for your quad.

Globally recognized for their performance and power gains, Doma exhaust systems have won over many top ATV riders, including Romain Couprie, Matthieu Ternynck, Randy Naveaux, Alexandre Giroud, Jeremie Warnia, Davino Bruneel, Kevin Saar, and Marc de Vries.

Doma exhausts are manufactured in France, in the workshops located in Calais (62100).