BMW G23 M440i B58 3.0L Performance ECU Software / Tuning

Plug-&-Play piggyback tuner offering a wide range of adjustments - easily adjusted via Dinan's Bluetooth app Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with the Gen3 B58 (B58N / B58TU2) engine only

Brand:

ES#:

5425666

Mfg#:

D440-0201

11% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$742.99

This product was last offered at the strikethrough price on
09-23-2026

$659.99 USD

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Lifetime Replacement

Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.

Brand:

ES#:

4714891

Mfg#:

JB4-OBDII-CA

$25.00 USD

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on orders $49 and up

Lifetime Replacement

A piggy back tuner that allows you to adjust throttle response for peak performance.

Brand:

ES#:

4884002

Mfg#:

999982BMW

$259.00 USD

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on orders $49 and up

Lifetime Replacement

Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail.

Brand:

ES#:

4714892

Mfg#:

JB4-OBDII-CA-MC

$30.00 USD

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Lifetime Replacement

Visconti has created a true plug and play harness kit for Gen 2 B58 and S58 cars!

Brand:

ES#:

4810321

Mfg#:

200.1103

$615.00 USD

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Lifetime Replacement

Next-Gen Power Delivery with OEM-Level Integration - up to + 70 HP / + 70 TQ For LCI models with the Gen3 B58 (B58N / B58TU2)

Brand:

ES#:

5434555

Mfg#:

NM.64502058.2

$649.00

This product was last offered at the strikethrough price on
09-22-2026

$597.99 USD

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on orders $49 and up

Lifetime Replacement

Next-Gen Power Delivery with OEM-Level Integration - up to +80 HP / +75 TQ For Pre-LCI models with the Gen2 B58 (B58D / B58TU)

Brand:

ES#:

5434554

Mfg#:

NM.64502058

$649.00

This product was last offered at the strikethrough price on
09-22-2026

$597.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Next-Gen Power Delivery with OEM-Level Integration - up to +50 HP / +40 TQ For Vehicles with B58TU2

Brand:

ES#:

5504766

Mfg#:

NM.64502058.3

Next-Gen Power Delivery with OEM-Level Integration - up to +50 HP / +40 TQ For Vehicles Equipped with B58TU

Brand:

ES#:

5504760

Mfg#:

NM.64502358.2