Now sold For sale a very clean, little used, complete ARROW full system. Fits MTS1000 and will fit MTS1100 using headers & DP ECU omitting the need for Lambda (no boss on this system). With option of either: DP ECU HW103 for 1000 or DP ECU HW610 for 1100 both have immobiliser turned off and a Pipercross air filter with lid minus the snorkels. Just ARROWS Full System = £500 ARROWS + an ECU & Filter/Lid = £600 The system with all springs/bolts weighs 8kg that's nearly half that of the STD. I have the same system on my own 1000DS for about 3-4 years now and no issues, many tours round Europe. All boxed up for shipping will be around 10kg. Official figure of 91dB with dB killers in and mine measured at a trackday was 102dB with killers removed. PM me if interested....