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Kawasaki Four Stroke Intake Systems Engine & Gaskets Exhaust Driveline Handling Electrical Waterline & Bilge Cables Steering & Controls Body Accessories Service Tools & Hardware Index KAWASAKI FOUR STROKE Orders & Info: 858-453-4454 • HotProductsUSA.com 87 © 2024 Hot Products. All rights reserved. EXHAUST RK16090 SE-098062 SE-098069 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 & newer 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 250/260/300/310 Pro-Series Water Box RK16091-1 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 & newer 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. Free Flow Exhaust Kit Ultra 310 (2014 & newer) RK16110 RIVA Racing Free Flow Exhaust Kit RK16090-08 Ultra 250 (08), 260 (2009-10), 300 (2011-13) RIVA Racing Free Flow Exhaust Kit RK16090 Ultra LX / 250 X (2007-08), STX12F/15F (2004-08) RK16090-08 RK16110 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 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 SE-098070S SE-098066 New Reduced Price! WSM EXHAUST HOSE Description OEM No. Part No. Exhaust Hose 92191-3986 011-509 K1200/1500 (2003-22) *See page 205 for more information