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Sea-Doo 4-TEK Products

The following products are designed for use with your Sea-Doo Jet Boat or boat equipped with a Sea-Doo 4-TEK engine

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If you still have questions, feel free to contact me at jeff@cobrajetsteering.com

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Testimonials
  • All I have to say is THANK YOU!! I was going to trade my boat in and your fins made all the difference in the world!! I was scared to drive my boat without these, now I can control my boat and dock it...

    via email to CJS

  • Jeff, Took the Vortex Vrx 223 out yesterday with the cobra fins on.. it makes a big difference. we hit 50MPH in rough water on lake tahoe yesterday.. You should sell your patent to the boat ...

    James via email to CJS

  • I have the CJS venom viper kit and I can assure you the kit performs exceptionally well. The attitude of the boat is completely changed on plane. It cuts through the water rather than on top. No mor...

    via JetBoaters.net Forum

  • Absolutly fantastic!!! It was like having power steering. It does everything it is advertised to do and more. At full speed before it was installed, it took some force to turn it. Now I can turn using...

    Rick Hopper

  • Fins are working great! Wow, what a difference. Install went smoothly. I would recommend the fins to any jet boat owner! Thanks Jeff!

    Derek Dial

  • Finally got to test out the CJS Viper steering system I purchased. I can’t believe the difference it makes in the handling of my Yamaha 190 FSH especially at idle speeds, maneuvering is now a breeze...

    John & Pam

    johnpammo@hughes.net
  • I need to share my recent experience with you and visitors to your web site. As you know I have had your steering system on my sea doo for nearly as long as I have had it, about two years. My girlfrie...

    David

  • Installed the ultimate and fangs on my 2015 yamaha ar230. Easy install. Noticed the difference backing the boat off the trailer, straight as can be. We have a long no wake zone, the boat was much easi...

    William Eaton

  • Customer review sent to me on the new Ultimate A K steering with mega fang plus compared to the thrust vector steering on a 21 foot yamaha the articulating kee...

    email to CJS

  • I don't know how you figured out how to do this .But what a difference it made on my gsx.I enjoyed this ski accept for the loss of control at high speed . If I turned fast it would loose its bite and ...

    Bill

  • After lots of research and reading on this website I decided to put Cobra Venom steering fins on my 2012 242LS. I wouldn't say I'm an "experienced" boater. I did own an entry level Regal bow...

    via email to CJS

  • Jeff, that's all I have to say is thank you! After installing the Cobra Venom 16X on my new boat, I am finally able to dock just like my previous stern drive. You made me a believer in your product th...

    Randall Byerley

  • We are senior citizens and decided to purchase a jet ski to help entertain our grandchildren. We purchased one with the Cobra Steering from Jeff. It is unbelievable! Now my wife wants her own. The ste...

    Paul and Pam

  • This was the best thing I have ever done to my jet ski! I get out of the water faster, have more control and boy is it fun. I highly recommend this product. Ride Hard!

    Ride Hard

  • Jeff, I installed the cobra jet system last week and just took my boat out yesterday, it was great! Thank you for making a quality product and it has made maneuvering my boat much easier. Sinc...

    Tony

  • I tried your steering kit on my quick-handling XP. I am amazed that something that looks small and inconsequential can make such a difference. This ski can be punishing in chop and at high speed becau...

    Bill Baker

  • Slow speed handing has greatly improved since the installation of the Cobra Steering. Which is what you promised and delivered to me VERY quickly. Order was received here in California four days after...

    David B

  • After some steering and tracking issues I ordered Cobra Venom 16x steering upgrades for our 2011 AR 240. I ordered the parts on Wednesday and they were delivered to our marina by Friday. I explained t...

    via email to CJS

  • Testimonial for the Mercury V6 Optimax System: Installed on my 2002 seadoo islandia. I was very skeptical at first...that is until I was in the water. All I can say is what a great product!!! How d...

    via email to CJS

  • Just thought I would let you know that we love the cobra jets. My mom will actually drive the boat now!! Thank you!

    via email to CJS

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