Yamaha SHO RIVA Intake Manifold Upgrade Kit Add Boost & MPH! RY12040-IMUK

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Yamaha FX-SHO RIVA Intake Manifold Upgrade Kit

Our Intake Manifold Upgrade Kit enables your SHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the increased boost provided by our Intake Manifold Upgrade Kit.