Z-400
#2
Z-400
Iwould NOT spend my money on a CDI box unless all of the other power mods are already done,, It don't make it's power up there in stock or slightly modified form. A 440 or 450 kit with cams, more compression and pipe with after market air filter and jetting will do much more than just screaming your motor to death.
KFXBob
KFXBob
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