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       You are here: Home > Watercraft > Popular Models > FZR/FZS Performance Parts > Exhaust Mods
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RIVA FZR SHO WaterBox
RIVA Racing WaterBox, Pro-Series, Yamaha FX-SHO/FZ/VX
Our Price: $399.95

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 Yamaha 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 modified motors.

Key Benefits Include:

  • Delivers up to 15hp on modified craft!
  • Machined hose flanges for reliable coupler retention.
  • Radiused exhaust tubes & end caps.
  • Powdercoated to prevent corrosion.
  • FZS Yamaha Exhaust Kit
    Rear Exhaust Kit Yamaha FZR FZS
    Our Price: $339.95

    Riva rear exhaust kit for the FZR & FZS delivers performance and cutting-edge style. Allows for removal of restrictive sound suppression system located between waterbox and hull exit. Improves engine performance by reducing back pressure and restriction. Includes mandrel bent aluminum exhaust tube that is powder coated to prevent corrosion, large billet through-hull exhaust outlet, billet OEM exhaust outlet block-off and high-temp silicone couplers along with all necessary mounting hardware & installation.

    Yamaha FZR Free Flow Exhaust Kit
    RIVA FZR FZS FXSHO Free Flow Exhaust Kit
    Our Price: $199.95

    Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft. Improves engine performance by reducing back pressure and harmful detonation. Includes mandrel bent aluminum tubing that is powder coated to prevent corrosion, high-temp silicone replacement coupler and installation instructions.
     
    Fits Models FX SHO FZR FZS 2009 FX HO
    SHO High Flow Exhaust Kit
    Yamaha SHO FZR High Flow Exhaust Kit
    Our Price: $189.95

    The R&D SHO High Flow Exhaust Kit will add a noticeable low end and mid range power feel as well as add top end performance! The R&D High Flow Exhaust Kit will add a great performance sound to the SHO while maintaining a safe and under IJSBA and Coast Guard approved 86 db!
    RIVA Rear Exhaust Tip Kit
    RIVA Rear Exhaust Tip Kit
    Our Price: $159.95

    Comes complete with stock exhaust blockoff plate, coupler and Clamps.
    O2 Sensor Mount Kit for FZR, SHO, FX-140, H/O, GPR, and VX 110
    O2 Sensor Mount Kit for FZR, SHO, FX-140, H/O, GPR, and VX 110
    Our Price: $29.95

    The new R&D O2 Sensor Mount Kit allows for easy installation of an AFR gauge into the Yamaha exhaust system. It simply replaces the OEM plug and installs directly into the OEM exhaust pipe without any modifications. Kit comes complete with installation tool. Fits Yamaha FZR, SHO, FX-140, H/O, GPR, and VX 110.

    AFR gauge sold separately.

    Please note that part# 332-18010 will only work on 2011~08 Yamaha models.  2012 & newer models require a hole be drilled in the exhaust pipe in order to install a Lambda sensor.