I understand that LTA do not approved aftermarket exhaust even with cert for FZ1. I recently bought an akrapovic with cert and wanted to change ownership at the SG akrapovic dealer. Was told that this bike model aftermarket exhaust will not approved by LTA even got cert. I even called up Arrow dealer and was told the same thing, please find out more before handling your money to seller. My case was 6 months ago. 2006 model. Good luck!