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and continuous high-RPM operation without breaking down
in many cases it is not enough to prevent belt slip
print out your emailed receipt and put that in a box with your supercharger(s)
On capable engines with supporting mods and fuel
Kong Performance Lightweight Billet Flywheel (+30HP) for Mercury 300R ls9portUpsell and continuous high-RPM operation withoutKong Performance Billet Lightweight Flywheel for Mercury Racing 300R Tap into the simplest proven gain in performance for your Mercury Racing 300R with the Kong Performance Billet Lightweight Flywheel engineered for maximum performance, reliability, and simplicity. Key Features & Benefits Built In Ignition Timing AdvanceIncrease +30 horsepower per engine with our integrated timing advance design. No external modules, no complicated setupjust proven,
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