74
INTAKE
SYSTEMS
KAWASAKI
4 STROKE
ENGINE/
GASKETS
EXHAUST
DRIVE LINE
HANDLING
ELECTRICAL
WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
ULTRA 250/260/300/310 • EXHAUST • COOLING
©2015 Hot Products. All rights reserved.
RIVA RACING PRO-SERIES ULTRA
250/260/300/310 WATER BOX
Developed on RIVA's 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
modified motors. Includes detailed installation instructions.
Key Features:
• Delivers up to 15hp on modified craft.
• Machined hose flanges for reliable coupler retention.
• Radiused exhaust tubes & end caps.
• Powder coated to prevent corrosion.
2014 Ultra 310:
Direct replacement for original water box. Use with stock
exhaust outlet hose or RIVA Free Flow Exhaust Kit (part# RK16110) and
coupler RK15-2.38/3.75.
2011-13 Ultra 300:
Direct replacement for original water box. Use with stock
exhaust outlet hose or RIVA Free Flow Exhaust Kit (part# RK16090-08).
2008-10 Models:
Direct replacement for original water box. Features larger
outlet (2-1/4“) compared to stock water box (1-3/4“). Must be used with RIVA
Free Flow Exhaust Kit RK16090-08.
2007 Models:
Direct replacement for original water box. Use with RIVA Free
Flow Exhaust Kit (Part # RK16090).
Description
Part No.
RIVA Ultra 250/260/300 Pro-Series Water Box
RK16091-1
RIVA RACING BILLET
EXHAUST TIP FOR
ULTRA 250X/LX,
STX-15F/12F
Quickly and easily add style to your
craft with this direct replacement for
the stock, plastic exhaust tip. Made from billet aluminum with laser etched
graphics. Anodized to prevent corrosion.
Description
Part No.
RIVA Racing Billet Aluminum Exhaust Tip
RK16086
Ultra 250X/LX (07), STX-15F (2004-14)/STX-12F (2003-08)
RIVA COUPLER
Required when installing RIVA Pro-
Series Water Box in conjuction with
Free Flow Exhaust Kit RK16110.
Description
Part No.
Coupler 2.38” x 3.25”
RK15-2.38/3.25
RIVA ULTRA 250 (08)/260/300/310
FREE FLOW EXHAUST KIT
High quality mandrel bent aluminum exhaust tube will survive meltdowns &
backfires. Includes billet exhaust outlet with laser etched graphics that is
anodized to prevent corrosion. High temperature silicone couplers included
along with detailed installation instructions.
2014 Ultra 300:
For use with RIVA Pro-Series Water Box order coupler
RK15-2.38/3.25 to connect Free Flow Exhaust Tube to Pro-Series Water Box.
2011-12 Ultra 300:
Replaces soft rubber exhaust hose with sturdy aluminum
tubing. For maximum performance, use with RIVA Pro-Series Water Box
(part# RK16091-1).
2008-10 Models:
Replaces restrictive 1 3/4" rubber exhaust hose with large
2 1/4" aluminum tubing & outlet. For maximum performance, use with RIVA
Pro-Series Water Box (part# RK16091-1). Can also be utilized with OEM
water box using silicone reduction coupler (part# RK16090-08-ERC).
Description
Part No.
RIVA Racing Free Flow
RK16090-08
Exhaust Kit Ultra 250 (08), 260 (2009-10), 300 (2011-12)
Free Flow Exhaust Kit Ultra 310 (2014)
RK16110
RIVA EXHAUST
REDUCTION COUPLER
Fits:
2009-10 Ultra 260
&
2008 Ultra 250.
High-temp silicone reduction coupler
allows RIVA Free Flow Exhaust Kit
(Part # RK16090-08) to be used with the
stock water box.
Description
Part No.
RIVA Exhaust Reduction Coupler
RK16090-08-ERC
ROGUE RACING
ULTRA VALVE
COVER BLOCK OFFS
Features:
• Inexpensively replaces worn or leaking valves
• Lowers exhaust temperatures
• Lowers exhaust back pressures
• More consistent top speed averages • More precise AFR tuning
• More responsive low end performance
Description
Part No.
Rogue Racing Ultra 250X/LX (07-08),
EBOP-BLK
STX-15F/12F Valve Cover Block Offs
