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CSTuned Flex-Fuel Custom E-Tune (HPTuners)

Marsoni M251S
Sale price$239.97
Pay 4 payments of $59.99 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CSTuned Flex-Fuel Custom E-Tune (HPTuners)A powerful and reliable flex fuel (two octane boundaries) custom remote tune (e tune) from an authorized HPTuners dealer! Increased Horsepower and Torque Customizable and Engaging Drivability Greater Reliability and Peace of Mind Superior Fuel Economy Unmatched Customer Support Click here for a full list of supported vehicles! For questions regarding flex fuel calibrations, custom features, the tuning process, recommended maintenance, or anything
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Your CSTuned Flex-Fuel Custom E-Tune (HPTuners) 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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You'll receive a tracking link by email once your CSTuned Flex-Fuel Custom E-Tune (HPTuners) ships.

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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
4.5 ★★★★★
Based on 2455 reviews
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Verified Purchase
Robert Weiner
Lexington, US
★★★★★ 5
Super deal
This was a great replacement and much cheaper than most.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
G
Verified Purchase
Geff Chu
Houston, US
★★★★★ 5
Nice replacement filter
Fits perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
L
Verified Purchase
Lido
West Palm Beach, US
★★★★★ 5
Easy to install
Easy to install, good quality, perfectly fit, and great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2024
G
Verified Purchase
Gary J
Whiting, US
★★★★★ 5
08 CRV filter
Factory look, size and easy install. Good filter material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 16, 2025
J
Verified Purchase
Jake Eddy
Waukegan, US
★★★★★ 5
👍
Fits. Works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025

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