03-05-15, 10:55 AM
(This post was last modified: 03-05-15, 10:58 AM by chaparral02.)
I wouldn't get rid of the Exup valve on a gen1 as you most likely loose a lot of bottom/mid range power..
Plus the Exup valve on the gen1 makes an aftermarket exhaust silencer sound nice & quiet at low rpm...
Plus the Exup valve on the gen1 makes an aftermarket exhaust silencer sound nice & quiet at low rpm...

08 Graphite Grey FZ1 ABS..
Yoshi CF R-77 Full system, FCE, Ivans Flies, PC-V + Autotune Kit, DNA Aifilter & Airbox Mod, Speedo healer ,16T front gen1 sprocket,
Sargent front & rear seats, Fender eliminator, CA Intergated Rear Led, MRA Vario Screen , Givi mono rack & V46 topbox
Yoshi CF R-77 Full system, FCE, Ivans Flies, PC-V + Autotune Kit, DNA Aifilter & Airbox Mod, Speedo healer ,16T front gen1 sprocket,
Sargent front & rear seats, Fender eliminator, CA Intergated Rear Led, MRA Vario Screen , Givi mono rack & V46 topbox