Sigma Lambda Controller Free 2

Marsoni

M251S

$42.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Sigma Lambda Controller Free 2SLC Free 2 will only work with genuine Bosch LSU 4. 9 sensors. Clone sensors are not compatible. SLC Free 2 is the successor to our very popular SLC Free Open Source Wideband Lambda Controller. This new version requires much less assembly than the previous version. Most components are now surface mount and come pre soldered to the PCB. Soldering of two Molex connectors and two 16 pin headers, as well as constructing cables, is required. All components

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Your Sigma Lambda Controller Free 2 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

my usual to go product for Honda CRV i had for long time. But last item i received I was not happy the quality seems like changed from past products. so far i had no complains. Packaging as always was solid. Performance was good. Lasted for more than mileage mentioned on the product page. Air flow is good.

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Reviewed in the United States on December 1, 2025

Verified Purchase

Amazon Customer

Phoenix, US

★★★★★ 5

Fits car based on Amazon rec

Fit perfect and performs as expected

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Reviewed in the United States on May 24, 2026

Verified Purchase

Steven M Miller

Charlottesville, US

★★★★★ 5

Looks as good as the genuine one.

This looks like a quality product, great for the price. It looked identical to the genuine Honda part but was $20 cheaper than the Honda one.

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Reviewed in the United States on April 17, 2026

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kiki

Cuba, US

★★★★★ 5

Self replacement.

Good fit.

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Reviewed in the United States on April 13, 2026

Verified Purchase

Bob P.

Massapequa, US

★★★★★ 5

Perfect fit

This filter was a perfect fit on my 2024. CR V. I took the the old one out and this one just fell into place. I is good quality and was equal to or better than the Honda OEM

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Reviewed in the United States on April 1, 2026