★★★★★ 5
Fits great
Excellent value for the money and fits great. Does exactly what you need it to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
New Style SST27SF512 Chip (64k)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
New Style SST27SF512 Chip (64k)64K EEPROM Replacement for OBD1 Honda ECUs (DualMap Support) Upgrade your tuning setup with this modern alternative to the discontinued SST27SF512 chips. This version features 64K memory capacity, allowing storage of two separate maps for use with onthefly map switching. Built on a PLCC32 EEPROM with DIP28 adapter PCB, its a direct dropin for OBD1 Honda Acura ECUs (19921995). Supports dual maps (ideal for high low boost or pump E85 setups) Compatible
Quick Dispatch:
Your New Style SST27SF512 Chip (64k) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your New Style SST27SF512 Chip (64k) 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
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4.0 ★★★★★
Based on 1547 reviews
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Product Reviews
★★★★★ 5
buen articulo funciona perfecto.
buen articulo funciona perfecto.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Just not right.
Color: Blue
Well this is a crazy situation it says it fit my car so I bought it think it was different from any others so I tried it. It DOES NOT fit a 2008 impala. It is not wide enough one way but to deep the other, even if rotated. I even tried over and over but it did work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
★★★★★ 1
Bad fit and bad information
Color: Blue
When I purchased this, it said it fit my 2007 Toyota Prius. Not even close. The problem with the smaller item purchases, is you end up giving the company money and it’s just not worth my effort to re-bag it, and find where I would need to return it. I would be extremely cautious if purchasing from this company.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 5
Smells fresh!
Color: Blue
This filter does a great job of keeping my truck AC smelling fresh. It has a bit of a chemical smell the first day or so but clears up nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
