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Jet Works Performance Flow Control Valve

$54.95  $48.36
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Introduced in 1994 the original Jetworks Flow Control Valve greatly improves bottom end response for racing or while re-applying your throttle during freestyle maneuvers. This is done by drying out your water box at low rpm and idle speeds. Without a flow control valve water fills up the water box and exhaust hoses, upon sudden acceleration all of this water must be forced out quickly before full exhaust flow can occur. This can cause a craft to feel slight hesitation and/or sluggishness, easily adjustable by turning the hex portion of the valve. We have sold these to every Factory Team during the 2 Stroke Racing era including Kawasaki, Sea-Doo, Yamaha and Polaris. They even came factory equid on some Factory Pipe Products Exhaust systems and OEM on Polaris Watercraft. Used by many, recommended by all, the Jetworks Flow Control Valve is the best and most noticeable performance upgrade for the price.


Can be installed on any aftermarket exhaust system by using the water fitting on the stinger.
Can be used in conjunction with a restrictor such as the Jetworks Water Restrictor Kit 


*2015 Revised version allows for lower pop off pressure.


This valve has been designed to prevent water flow to the water box at idle and just off idle engine speeds. It allows the craft to be more responsive off the line and around the turns. Even completely stock watercraft show an improvement in throttle response. Allows the water box to dry out upon sudden acceleration creating faster starts and better holeshots during race starts and sharp turns.


  • Average acceleration improvement of 10 feet in the first 50 feet
  • Adjustable with shims supplied
  • Pop off pressure can be set as low as 1/2 pound
  • Pressure can be tested with a pop-off gauge
  • Comes in a preset kit
  • All stainless internal parts
  • IJSBA race legal
  • Made In The U.S.A



****This is the Original Jetworks Flow Control Valve, it is now only available in silver, previously in blue. Any other colors being sold elsewhere are a copy and we cannot offer support for those.

  • Model: JW-FCV-38
  • Manufactured by: Jet Works Performance

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