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Yamaha GP1300R Riva Stage II Kit
Yamaha GP1300R 03 | 04 Riva Stage II Kit
Stock 64-65MPH @ 7070RPM
Stage I Kit 69-70MPH @ 7280RPM
Stage II Kit

71-72MPH @ 7050RPM

Parts Price Total: $2,073.39
Price if Purchased as Kit: $1,959.00
You save $114.39!
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RIVA Pro Series EFI
Riva GP1300R EFI Control Unit
If you plan to modify your Yamaha GP1300R the Electronic Jet Kit E.F.I. Control Unit is a must. 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 Features:

  • 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.

Our Price: $399.95
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RIVA Solas Concord Set-Back Impeller
RIVA Solas Concord Set-Back Impeller, 14/21
Set-Back 14-21Degree, 155mm (66V)
The RIVA/Solas ‘Set-Back’ is a special series of performance impellers offered exclusively by RIVA and RIVA authorized dealers.
Built by Solas, these impellers deliver the ultimate in performance for modified Yamaha watercraft.
Inner hub is machined allowing impellers to mount closer to vein housing for reduced cavitation and more top speed.
All three blades are digitally calibrated to RIVA’s uniform pitch specifications.
Impellers are then dynamically spin-balanced at high RPM.
A precision factory blueprinting process is performed far exceeding any ‘prop shop’ services available.
Includes Billet Impeller Cone for maximum performance and durability.

Our Price: $269.95
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R&D FIXED TRIM PADS, GP 1200R/1300R/800R
R&D FIXED TRIM PADS, GP 1200R/1300R/800R

Our Price: $225.95
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Riva Yamaha GP1300R Reed Stuffer Kit
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

Our Price: $174.95
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RIVA GPR1300R Performance Ride Plate
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

Our Price: $169.95
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Yamaha GPR1300R Reduction Nozzle
GPR Reduction Nozzle, OEM (87mm)
Yamaha OEM 87mm reduction nozzle significantly out-performs the stock 85mm nozzle on `03~04 model GP1300R's when used with our recommended aftermarket impellers. Features larger exit diameter and 5-degree upward angle. Stock bilge system is retained.

Our Price: $144.89
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RIVA GPR1300R Top-Loader Grates
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

Our Price: $139.95
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Yamaha GP1300R Free Flow Exhaust Kit
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.

Our Price: $119.95
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RIVA Yamaha GP1300R Power Filter
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.

Our Price: $89.95
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Riva Yamaha GPR1300R Pump Seal Kit
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.

Our Price: $79.95
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Riva Cat Removal DPlate
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

Our Price: $74.99
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