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ULTRA 250/260/300/310 • EXHAUST • COOLING
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R&D ULTRA 300/310
PERFORMANCE EXHAUST PLATE
The R&D Performance Exhaust Plate replaces the restrictive OEM exhaust
honeycomb filter that Kawasaki recommends inspecting or replacing every 25
hours. The R&D Exhaust Plate eliminates excessive exhaust heat and flow
restriction produced by the OEM exhaust filter. Improved exhaust flow
decreases back pressure, and heat and increase performance. The Exhaust
Plate also features small water ports that decrease water flow to the water
box, which eliminates hard starting conditions from wet spark plugs. The
R&D Exhaust upgrade never needs to be inspected or replaced. Kit comes
complete with gaskets to install.
Description
Part No.
R&D Ultra 300/310 Performance Exhaust Plate
331-35300
ULTRA 250/260/300/310
5 PORT COOLING MANIFOLD
The R&D 5 Port Extra Cooling Manifold is a bolt on part that replaces the
OEM cooling manifold mounted to the top of the jet pump. For offshore and
high performance use where engine loads are sustained for longer distances,
R&D recommends adding extra cooling to the engine, oil cooler, and inter-
cooler. The R&D manifold provides 3 additional ports over the stock manifold.
CNC machined from billet aluminum, o-ringed sealed and anodized for corro-
sion resistance. Kit comes complete with five ½” fittings. Additional ½ to ½
through-hull water fittings (R&D Pt. # 660-00012) required for each additional
line, order as needed.
Description
Part No.
R&D 5 Port Extra Cooling Manifold
660-82501
For Ultra 250/260/300/310
RIVA ULTRA 300/310
EXHAUST RACE PLATE
RIVA’s Exhaust Race Plate allows
easy removal of restrictive honey-
comb element on Ultra 300/310 for
competition use. OEM exhaust
element is located inside exhaust
manifold obstructing exhaust flow and
producing excessive heat. Installation
of Race Plate increases horsepower
and reduces under-hood operating temperatures. Plate is precision machined
out of high quality stainless steel. FOR COMPETITION USE ONLY.
Description
Part No.
RIVA Ultra 300/310 Exhaust Race Plate
RK18100-ERP
ULTRA 250/260 INTERCOOLER
TEMPERATURE CONTROL UPGRADE KIT
• More horsepower with cooler intake air temperatures
• Increased acceleration and mid range performance
• Reduces detonation in hot weather conditions
• Temperature control tuneability
• An inexpensive recreational performance addition
• Pressure relief valve preserves O.E.M. intercooler
• Easy installation instructions
Description
Part No.
R&D 250/260 Intercooler Temperature
660-82500
Control Upgrade Kit
SE “SPEED MAGIC” ULTRA 250/260/300/310
EXHAUST FLANGE
SE “Speed Magic” billet exhaust flanges create a unique and personalized
look. Anodized and utilizes the OEM exhaust flange mounting holes.
Description
Color
Part No.
Trumpet Flange
Silver
SE-098062
Cyclone Flange
Silver
SE-098066
Megaton 4 Flange
Silver
SE-098069
Type 5 Flange
Silver
SE-098070S
Type 5 Flange
Green
SE-098070G
KAWASAKI
4 STROKE
INATKE
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/BILGE
STEERING
& CONTROLS
BODY
ACCESSORIES
SERVICE TOOLS
/HARDWARE
CHEMICAL
SE-098062
SE-098069
SE-098070G
SE-098070S
SE-098066
