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Yamaha GP1300R 05 | 08 Riva Stage II Kit

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65~66MPH @ 7,100RPM |
| Stage I Kit |
70~71MPH @ 7,100RPM |
| Stage II Kit |
71~72MPH @ 7,150RPM |
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Parts Price Total: $2,475.24 Price if Purchased as Kit: $2,326.00 You save $149.24!
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RIVA GP1300R Performance Cylinder Head Kit

Increase engine compression and power with our economically priced cast aluminum head kit for triple powervalve motors. Precisely machined pump gas combustion chambers are designed to produce 145-150 LBS compression (valves down) at sea level elevation, significantly boosting motors performance and throttle response. Optional girdled hardware kit prevents cylinder cracking by clamping cylinder between head and cases. Utilizes OEM head gasket and is powder-coated to prevent corrosion. Includes all necessary hardware and installation instructions.
Note: Girdled Hardware Kit Sold Seperately
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Our Price: $424.95
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Riva GP1300R Pro-Series EFI Control Unit

This easy-to-use control unit plugs directly into the OEM wiring harness between the ignition and fuel injection system providing control of the engines fuel management system. Key benefits include:
Allows addition of fuel required with engine modifications without upsetting stock fuel map. Integrated dials provide easy adjustment and fine-tuning of fuel delivery curve without external programming devices. LED lights indicate fuel delivery settings while tuning Won’t interfere with craft’s stock sensors and inputs IJSBA Stock, Limited & Superstock/Open Class Legal.
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Our Price: $379.95
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RIVA Pro-Series Adjustable Sponsons, GP1300R / GP1200R / GP800R

Dramatically improves the handling of your GPR with its superior blade design and mounting angle. Includes a bulletproof mounting system that features a billet backing plate and three anchor points with billet inserts in sponson fins. Sponson is angled out at the bottom for better stability and more bite in corners. Sponson depth is adjustable to control the amount of influence they have on the craft. Easy installation requires no drilling.
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Our Price: $249.95
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Solas DynaFly Impeller, 14/20 Degree, Yamaha

Solas DynaFly Impeller designed for use with Yamaha GP1300R & FX-HO models.
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Our Price: $240.95
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RIVA GPR Performance Trim Tabs

Trim Tab Kit Performance GPR
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Our Price: $189.95
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RIVA Boyesen Reed Stuffer Kit, Yamaha 1200/1300 PV (66V/60T) 3 pcs

Riva precision aluminum reed stuffers were designed to increase fuel/air velocity through the intake tract, resulting in increased throttle response and acceleration. These stuffers fit your stock reed cages and match perfectly with the original intake manifold. Will not warp or loose shape like traditional plastic stuffers. A very economical bolt-on performance
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Our Price: $169.95
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RIVA GPR Performance Ride Plate

Fits all GP800R / 1200R / 1300R Designed to fit all GPR models Reduces Porposing Provides Quicker Planing Compatible with OEM Speedo Sender IJSBA Race Legal
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Our Price: $169.95
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RIVA Girdled Head Hardware Kit

Optional girdled hardware kit prevents cylinder cracking by clamping cylinder between head and cases.
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Our Price: $164.80
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RIVA GPR Top-Loader Intake Grates

Two Bar Design with Black Race Finish Designed for Stock to Stage III Craft Reduced Cavitation Improved Handling Race-Bred Design IJSBA Legal
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Our Price: $129.95
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RIVA GP1300R Free Flow Exhaust Kit

Replaces the restrictive sound suppression system on GP1300R’s. Improves engine performance by reducing back pressure and harmful detonation. Easy installation requires no cutting of hoses. IJSBA Limited & Superstock legal.
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Our Price: $119.95
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RIVA GP1300R Power Filter

Increase airflow and power Easily installed Mounts directly onto original flame arrestor case Built to our specifications by K&N Includes water repellent pre-filter cover.
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Our Price: $89.95
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Riva GPR Pump Seal Kit

Dramatically reduce cavitation and prop spin with our easy to install Pro Pump Seal Kits. Location specific, molded inserts fill the voids in OEM pump inlet shoe that bleed air into pump causing cavitation. Recommended for modified craft using aftermarket intake grates. Includes detailed installation instructions.
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Our Price: $79.95
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Riva Cat Removal D-Plate

The Riva “D” plate is a low cost product that directly replaces the catalytic converter in the GP1200R, XL1200Ltd, XLT1200, and GP1300R. Installation increases top-end speed, reduces under-hood operating temperatures and allows the use of regular 2-stroke oils. This unit is a high quality stainless steel replica of the plate that is standard equipment on export model Yamaha watercraft without emission controls. Please note, you will also need this chip to make the conversion
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Our Price: $74.99
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