« Reply #3 on: 03 May 2015, 10:55:02 am »
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...
« Last Edit: 03 May 2015, 10:58:13 am by chaparral02 »
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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,
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