Kawasaki Jet ski performance, Repair &  Maintenance 

Kawi performance

Ultra 300      $3,888.53

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Ultra 310   $1,404.30

$1,909.00

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Ultra 310      $3,923.55

KP Stage 3 Complete Engine Kit

(Kit comes with everything you will need to run and install a stage 3 boost pulley. Top speed averages 77-78mph with all bolt-ons installed. Kit comes with: Stage 3 Pulley, KP-Aeromotive Rising Rate Fuel Pressure Regulator, KP Premium 320 LPH Fuel Pump, Digital Fuel Pressure Gauge Kit, High Flow Inline Fuel Filter and AFR Gauge Kit for tuning. **Normally $2,048.00**)

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KP Stage 6 Engine Kit

(A stage 6 pulley puts out significant boost over stock. You will see 6 PSI over stock! The increased boost creates an enormous amount of stress on your engine, which is why we highly recommend this complete kit. Not upgrading engine internals could lead to engine failure! This kit will eliminate this issue and prevent engine damage from excess stress on the engine. This kit comes with JE FORGED 9.5:1 PISTONS, HEAD STUDS, VALVE TRAIN UPGRADE, CARRILLO H-BEAM CONNECTING RODS, CYLINDER GASKET, OEM HEAD GASKET, CONNECTING ROD BEARINGS (Please specify size) and KP STAGE 6 PULLEY.  We highly recommend using race fuel or E-85 with this setup, but 93 octane pump gas is possible with a good tune. You will need a 320 LPH fuel pump, KP-Aeromotive fuel pressure regulator, fuel pressure gauge, and AFR kit for tuning. Please contact us if you need help or have any questions!)

Ultra 300   $1,368.00

-Forged 9.5:1 Pistons (Stock Pistons are well known for cracking/ breaking and destroying motors)
-Plug In computer (This computer will richen your AFR, allowing your ski to run much better than stock)
-Head Gasket (New replacement head gasket)
-Cylinder Gasket (New replacement cylinder gasket)

Basic Reliability Kit For The 300's and 310's

(This kit is made for those who are looking to make their ski more reliable. Uses stock connecting rods. Here we have put together a kit that eliminates parts that are most prone to failure on these models. The output of your ski will be a bit higher than stock, so we recommend running on 93 Octane pump gas. The kit below comes with everything you would need for the upgrade, it even comes pre-programmed with our recommended settings. This kit is proven to provide you with outstanding reliability. No more burning oil or gas in your oil!)

Kawasaki Ultra 300x 310x Engine Reliability and Performer Kits