Upgrading the exhaust with the UlterSoundBox
voids the Homologation for the whole exhaust system
Before purchasing, please check if using such system is legal on public roads in your country.
In the order remarks section, please specify the exhaust for which you want to buy the UlterSoundBox upgrade
UlterSoundBox WARRANTY - 12 months
Hardware for controlling the valve position.
Product is compatible with Ulter-Sport Exhausts that have the built in valve.