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Kawasaki Engine Parts

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  • Kanaflex Tubing - Sold by the Foot

    Ordered by the foot. Select the quantity you need, and we will send that length.We offer the primary components individually from our Power Filter Kits for the "Do-It-Yourself" tuners. Velocity stack kits designed to fit stock supercharger inlets. Power Filter, Double Male Flange and Ducting designed to work together. Pre-Filter strongly recommended to prevent water ingestion. All components sold as is and do not include installation instruction...
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    $7.49

  • MTX-L Wideband Digital Air/Fuel Ratio Gauge Kit AFR

    ALL-IN-ONE!! (Wideband Controller integrated into easy to read gauge housing) The new Innovate Motorsports Digital MTX Series Air/Fuel Ratio Gauge utilizes the only 100% digital Wideband air/fuel ratio technology on the market! Gauge features a water resistant casing, interchangeable faceplates and bezels, and 2 fully programmable linear analog outputs for use with aftermarket engine managements systems and dataloggers! KEY FEATURES Inc...
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    $299.99

  • RIVA Power Filter for RS13050 Power Filter Kit

    Billet Band Clamp seals & secures ducting to velocity stack and double male flange. We offer the primary components individually from our Power Filter Kits for the "Do-It-Yourself" tuners. Velocity stack kits designed to fit stock supercharger inlets. Power Filter, Double Male Flange and Ducting designed to work together. Pre-Filter strongly recommended to prevent water ingestion. All components sold as is and do not include installation instruct...
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    $49.99

  • R&D KAWASAKI ULTRA 250/260/300 COOL AIR INTAKE KIT

    The R&D high performance Air Filter Kit will improve acceleration and top speed performance by increasing air flow and reducing air temperatures that enter directly into the Ultra 310’s air plenum box area. The O.E.M. air plenum box on the Ultra 310 is a great design that will flow plenty of air. However, the air that feeds the plenum box is heated by the engine. R&D has created an easy to install “flat filter” that installs directly in pla...
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    $122.80

  • R&D KAWASAKI ULTRA HIGH PERFORMANCE VALVE STEM SEAL KIT

    R&D offers High Performance Valve Stem Seal Kits specifically for Kawasaki’s  5mm stem size that are manufactured from only the best high quality Viton rubber materials that will resist high valve guide and oil temperatures to maintain a good valve seal in all high rpm, high performance applications. When valve springs are changed out or periodic head service work is being performed, trust R&D Valve Stem Seal Kits at any perfor...
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    $76.95

  • Free Flow Exhaust Kit Ultra 310

    Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft improving engine performance by reducing back pressure and harmful detonation. Made from These mandrel bent aluminum tubing and powder coated to prevent corrosion.
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    $259.99

  • RIVA Sea-Doo Supercharger Velocity Stack Kit

    Billet Band Clamp seals & secures ducting to velocity stack and double male flange. We offer the primary components individually from our Power Filter Kits for the "Do-It-Yourself" tuners. Velocity stack kits designed to fit stock supercharger inlets. Power Filter, Double Male Flange and Ducting designed to work together. Pre-Filter strongly recommended to prevent water ingestion. All components sold as is and do not include installation instruct...
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    $99.99

  • Kawasaki RIVA Ultra 260/250 Performance Power Filter Kit

    Delivers greatly improved acceleration and increased top speed by replacing the restrictive stock intake system. The Power Filter feeds your supercharger with an increased volume of air via a large 4” diameter intake duct and oversized K&N filter element. Ducting is precision formed from a race proven composite that will not conduct heat to incoming air. Includes water-repellent pre-filter. IJSBA legal for all classes.
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    $249.95

  • Kawasaki Pro-X Piston Kits

    High-quality Pro-X Pistons are the perfect replacement for original pistons in your watercraft. Precision machined from a low-expansion, low friction piston alloy to the same specifications as the OEM equipment. Kits include piston, rings, wrist pin and circlips. Wrist pin bearing sold separately.
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    $125.96

  • Kawasaki RIVA Ultra 300 Performance Power Filter Kit

    Delivers greatly improved acceleration and increased top speed by replacing the restrictive stock intake system. The Power Filter feeds your supercharger with an increased volume of air via a large 4” diameter intake duct and oversized K&N filter element. Ducting is precision formed from a race proven composite that will not conduct heat to incoming air. Includes water-repellent pre-filter. IJSBA legal for all classes.
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    $259.95

  • Kawasaki Riva Free Flow Exhaust Kit 07 Ultra 250X/LX

    Enables you to bypass or remove secondary muffler (weight savings of +10lbs) improving engine performance by reducing back pressure and harmful detonation. Formed aluminum exhaust tube is light weight and powder coated to resist corrosion. Included billet exhaust tip (also sold separately) with laser-etched graphics is anodized to prevent corrosion. High temperature silicone couplers included with detailed installation instructions.
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    $199.95

  • Kawasaki Water Box Ultra Models

    Developed on our Dyno and tested extensively on the water, this water box features radiused exhaust tubes and end caps for optimum exhaust flow. Unique exhaust baffle will increase the low-end power and mid-range pull of your Kawasaki Watercraft. Delivers up to 15hp on modified engines along with significant torque gains. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to prevent corrosion. A must for modif...
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    $374.95

  • R&D KAWASAKI ULTRA STAINLESS INTAKE VALVE KIT 1MM (SET OF 8)

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $364.95

  • Kanaflex Billet Clamp

    Billet Band Clamp seals & secures ducting to velocity stack and double male flange. We offer the primary components individually from our Power Filter Kits for the "Do-It-Yourself" tuners. Velocity stack kits designed to fit stock supercharger inlets. Power Filter, Double Male Flange and Ducting designed to work together. Pre-Filter strongly recommended to prevent water ingestion. All components sold as is and do not include installation instruct...
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    $49.99

  • R&D KAWASAKI ULTRA EXHAUST VALVE KIT STANDARD (SET OF 8)

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $339.95

  • R&D KAWASAKI HIGH PERFORMANCE DUAL VALVE SPRING KIT

    R&D has developed an economical solution for upgrading the Kawasaki valve train by offering a series of upgrade parts that will work great with the O.E.M. retainer and valve seals. R&D has documented that the seat tension or pressure on the stock springs is a low 52-55 pounds, and coil bind on the stock springs occurs .050” after full lift on the stock cams. As an industry rule or standard, as boost levels are increased to the engin...
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    $505.50

  • Kawasaki RIVA Ultra 260/250 Intake Grates

    Reduces Cavitation Improves Hook-up No loss in top speed IJSBA Legal
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    $199.95

  • R&D KAWASAKI ULTRA RC1 RACING CAM KIT

    R&D’s RC1 Recreational/Racing Camshaft kit offers a great boost in horsepower for the recreational rider/racer who wants as much lift and duration that can be “Bolted In” without valve spring changes or valve guide machining. The R&D RC1 will install and work well with O.E.M. valve springs and retainers. The RC1 is a great choice for recreational and offshore riding or racing targeting the 7500-8500 RPM range for top end...
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    $999.95

  • Kawasaki RIVA Ultra 300 Tunable Top-Loader Intake Grate

    Our fully tunable Top-Loader Intake Grate for the Ultra 300 features an adjustable foil & removable rear inlet chip. Developed through a joint effort with TBM Racing, this grate provides riders with the ability to tune for specific riding style or water conditions. The center foil has three positions or can be removed entirely. In flat water conditions it can be raised to the highest position increasing speed .5mph. Or be removed completely p...
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    $249.95

  • Kawasaki RIVA Speed Control Override Module

     The RIVA Speed Control Override Module removes the restrictive speed control function on Kawasaki Ultra 300X/LX models delivering significant increases in top speed with stock ECU. Easy to install module delivers 3~4mph to stock craft and allows further top speed gains through aftermarket modifications. Does not affect speedometer accuracy, Eco Mode or Cruise Control functionality. Key Features: Removes restrictive speed limiter system....
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    $199.95

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