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4-TEK
The following products are designed for use with your Sea-Doo Jet Boat or boat equipped with a Sea-Doo 4-TEK engine
If you still have questions, feel free to contact me at jeff@cobrajetsteering.com
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Cobra Jet Steering for ROTAX/Sea-Doo 4-TEC Engines
MSRP: $339.99
Buy Direct Discount Price only $219.99
Testimonials
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I spent 7 hours on the lake today fishing. The Viper is the single best piece of equipment I've purchased for this boat. I highly recommend it. Spent a lot of the time at idle fishing and can say ...
from JetBoaters.net forums
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So after a couple of months of going back and forth on whether to buy Lateral thrust reversers or try a new system all together we went with the Cobra Jet Viper NK's with Mega Fangs (can't really go w...
Johnny H. in Parish, FL
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I just installed two Cobra Jet Steering Viper setups on my SX230 and I must say, I am very pleased with the results. I have been a jetboater and jetskier since the mid 90's and I have had my current b...
via Jetboaters.net
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Customer review of ultimate ak and mega fang plus on a 21 foot Yamaha as opposed to thrust vectors. First off, install was easy. I had no trouble following instructions and the pictures provided. ...
email to CJS
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Testimonial from a 2013 - 19' Yamaha jet boat owner who had the Viper NK with the Mega Fangs and upgraded to the Mega Fangs Plus...
Just got back from a great day on the gulf and hav...via Email to CJS
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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
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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
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I purchased your combo for the above boat. Easy Install, thanks, it's great. I talked to Yamaha Tec. Support, and the person I talked with said she has been constantly hearing about your product but d...
Michael Frug
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I now have a full season's experience with Cobra Jet Steering and can say that it's the single best modification I've ever made to our boat! Lining up to the dock is precise and maneuvering through tr...
Jim Smith
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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
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I can't say how much I enjoy your product ,excellent all around slow, fast, docking or pulling, just great engineering and fabricating thank you so much!
Timothy O'Brien
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Testimonial for the Mercury Optimax system:
Thanks much. Your invention saved my relationship! (with my new/used jet boat). During 15 years of owning two I/O's, I was careful (and ...email to CJS
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i found Jeff's website through a search for upgrades and read the page, then i called Jeff and had a nice conversation relating to the product. i then purchased a unit and have recently operated my sk...
Jim
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Just when I thought that great product, great service at an affordable prices was a thing of the past, then I found Jeff. The Utopia 205 is one of the heaviest seadoo jetboat and it needs quite a bit ...
Frederic Phaneuf
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Been meaning to chime in and tell you guys how awesome the Viper unit is. I now have 2 seasons with the 16 192 and wifey has only driven once for literally minutes. She just keep saying I can't keep t...
via post on a jet boat forum
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We purchased the cobra jet steering from you at the beginning of June. A couple viewings of your YouTube video later and the fins were installed! We took the boat out two weekends ago it was super win...
Amy Await-Reedy
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As new jet skiers, we were thinking that the ski would be very unstable and sort of like "riding a rocket." When we first launched our jetski with the steering installed, we were amazed at h...
Charlie and Sue
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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
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Hi Jeff - I installed the Cobra Jet Venom Ultimate fins last week. The difference in handling is night and day. Prior to the installation, my 2014 Yamaha SX 190 was very hard to steer at low speed bec...
Pete Brown
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