Triumph Speed 400 2010-2020 Headers. - Accepts the original Lambda sensor (O2 sensor), uses your bikes existing engine management system, no modifications required. - Compatible with your original Tiger silencer, Black Widow and any silencer fitted to your original headers. - This does not require the heat shield, this does not generate the heat of the original catalytic converter. - Compatible with the original bash plate/engine guard. - Two Year Black Widow warranty.