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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
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Description
Cobb 17-20 Honda Civic SI (FC1/FC3) AccessPORT V3Experience unparalleled tuning precision with the COBB AP V3 for the 2017 to 2020 Honda Civic SI models (FC1 FC3). This AccessPORT programmer offers a user friendly interface to unlock your vehicle's full performance potential. Designed specifically for the Honda Civic SI, it provides customisable ECU tuning that enhances horsepower and torque, optimizing engine efficiency and driving dynamics. Installation is straightforward with step by step
Experience unparalleled tuning precision with the COBB AP V3 for the 2017 to 2020 Honda Civic SI models (FC1/FC3). This AccessPORT programmer offers a user-friendly interface to unlock your vehicle's full performance potential. Designed specifically for the Honda Civic SI, it provides customisable ECU tuning that enhances horsepower and torque, optimizing engine efficiency and driving dynamics.Installation is straightforward with step-by-step instructions, making it suitable for both enthusiasts and professional tuners. This device supports quick flashing, allowing you to adjust settings on the fly and tailor your car's response to your driving style. With its compact and portable design, you can carry it easily and store multiple maps for different driving conditions.
COBB’s AccessPORT V3 fosters a connection between driver and machine through advanced diagnostics, real-time data logging, and comprehensive monitoring of critical engine performance parameters. It's the perfect upgrade for those passionate about getting the most out of their Honda Civic SI, whether on the street or track.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 3
Daily Intake on Label Confusing
Label was not clear regarding milligrams per pill. Title label stated 2000mgs per serving (of 4 pills), but “supplement label” states 4 pills is 144 mgs per serving as a 34% of daily value.
Very confusing. Not sure which metric to go by for daily intake.
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Great supplement
I like the way it helps me relax to sleep and helps to keep me more focused
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Reviewed in the United States on June 3, 2026
★★★★★ 5
No diarrhea
My wife had severe diarrhea using a common type of magnesium, taken at doctor's recommendation. Doctor recommended this type, L-Threonate. Totally eliminated diarrhea problem.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Magnesium
Helps with sleep, relaxation, and muscle cramps
* Can support mood and reduce stress
* Good for overall body function (nerves, muscles, heart)
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Reviewed in the United States on April 23, 2026
★★★★★ 4
High Quality
My husband is deficient in magnesium and these by far looked like they were of the highest quality . Not sure yet if they help him sleep better but will be purchasing them again.
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Reviewed in the United States on May 8, 2026