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CSTuned Flex-Fuel Custom E-Tune (EcuTek)

Marsoni M251S
Sale price$274.50
Pay 4 payments of $68.62 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CSTuned Flex-Fuel Custom E-Tune (EcuTek)A powerful and reliable flex fuel (two octane boundaries) custom remote tune (e tune) from a certified EcuTek Master Tuner! Increased Horsepower and Torque Customizable and Engaging Drivability Greater Reliability and Peace of Mind Superior Fuel Economy Unmatched Customer Support For questions regarding flex fuel calibrations, custom features, the tuning process, recommended maintenance, or anything else, please submit a ticket directly to CSTuned
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Your CSTuned Flex-Fuel Custom E-Tune (EcuTek) orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 2022 reviews
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Product Reviews
M
Verified Purchase
Marcie Greer
Draper, US
★★★★★ 5
Very durable!
Color: Cherries
Pups love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
M
Verified Purchase
Mrs. H.
Natrona Heights, US
★★★★★ 3
Came apart.
Color: Cherries
We were playing with it and the green part pulled off of the red part. I'm pretty sure that is not supposed to happen. I took the green part away from the dog because that part is too small for my pup to play with. But we continue to play with the red part. My dog likes the texture and the bounciness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
N
Verified Purchase
Navigator65
Belleville, US
★★★★★ 1
Caution - handle comes off!
Color: Cherries
I really liked this toy when I opened package--our dog liked as well! Until a short time ago when I saw her chewing on the green "stem"! The stem had come apart from the main cherries. This is a small enough part that I think she or any bigger dog could choke on. Our dog is a small lab. Would not recommend buying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Sturdy
Color: Bear
Good for dogs that like to chew. Smells like blue raspberry and I was not expecting that
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
S
Verified Purchase
Sara Knickmeier
Carnegie, US
★★★★★ 5
Must buy!
Color: Grape
My dogs love this and so do I. It really smells like “fun grape” like a fun smelling marker. It’s gentle for their teeth and durable! They are both interested in it and take turns using it, pretty awesome!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

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