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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
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
Cobra Jet Steering for 4-TEC engines being used in Scarab, Glastron, Chaparral & late model Sea-Doo boats
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Testimonials
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With some great advice and fast support from Jeff, I installed the fins in about 30 minutes. The Cobra Jet Steering is fantastic. The ski turns on a dime and nice hole shots. While idling in the Marin...
Ronn
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2017 212 Ltd S with Articulating Keel
I emailed Jeff ahead of ordering and he quickly answered all my questions. Several emails were exchanged and I got all the answers. I order the...Allen Franke
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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
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I THOUGHT I MADE A $25,000 MISTAKE! I bought my first boat ever – 19’ Yamaha SX190 Jet boat and launched it only to discover that it was very difficult to steer and nearly impossible for m...
Jeff Pierce
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I purchased the SeaDoo Jetboat primarily because the waters here in Bradenton are so shallow. Jeff put on the steering mod and the handling is so much better. It has maneuverability at idle whereas be...
David Cooper
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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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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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Hey Jeff, Installed them (Cobra Magnum AK and Fangs) in a jiffy! Had a little issue with the stock starboard tie rod bolt on the jet, they had locktite on the tie rod side and took a bit of work to...
via email to CJS
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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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After doing some research on my boat before I purchased it, I came across the Cobra Steering System. All I can say is WOW!!!. This product does give you a better feel and very quick response from the ...
Josh Holbrook
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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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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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Jeff, sorry I didn't get back to you sooner with feedback I have been too busy enjoying the new boat. The Cobra jet steering fins have made all the difference in the world to the 2012 Yamaha AR190 in ...
Kevin Vaughn
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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
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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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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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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
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It's hard to believe that such a small incremental expense can drastically change the overall performance of the entire experience. I am not a professional rider, in fact this is my first ski. I had i...
Brad Buchmann
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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 had another manufacturers"fins" on my boat and never really noticed much improvement in steering. I just replaced them with the Cobra Venom 16x's and I now notice a big improvement at all speeds eve...
JDW
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