Westside Media Group is proud to present our new original series “Ask George the PWC MECHANIC” Episode 2 RIVA YAMAHA SVHO/SHO/HO INTAKE MANIFOLD UPGRADE KIT The Riva Racing Intake Manifold Upgrade Kit enables your SHO engine to produce more horsepower. It delivers an increased air flow and boost pressure by (+1lb). A tapered billet sleeve […]