BMW G23 M440i B58 3.0L Performance ECU & TCU Tuning

Next-Gen Power Delivery with OEM-Level Integration - up to + 70 HP / + 70 TQ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For LCI models with the Gen3 B58 (B58N / B58TU2)

Brand:

ES#:

5434555

Mfg#:

NM.64502058.2

5% off MSRP

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

$599.00

This product was last offered at the strikethrough price on
06-15-2026

$569.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Next-Gen Power Delivery with OEM-Level Integration - up to +80 HP / +75 TQ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI models with the Gen2 B58 (B58D / B58TU)

Brand:

ES#:

5434554

Mfg#:

NM.64502058

5% off MSRP

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

$599.00

This product was last offered at the strikethrough price on
06-15-2026

$569.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Can leave this dongle plugged in without draining battery. Enables you to wirelessly load MHD flashes and several other functions to your BMW when paired with an Android or iOS device! Compatible with E, F, & G Chassis BMWs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Newest MHD Flash Adapter - works with E F & G Chassis BMWs!

Brand:

ES#:

4615596

Mfg#:

MHDWIRELESSV2

$99.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

The ultimate OBD adapter designed to deliver exceptional speed, maximum connection stability, and great performance for flashing, coding, and live monitoring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

5435385

Mfg#:

XA-ULTRA-ADAPTER

$109.00 USD

Add to Cart

Free Shipping

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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

4714891

Mfg#:

JB4-OBDII-CA

$25.00 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Version 1. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

4940110

Mfg#:

JB4-OBDII-4P7FCA

$25.00 USD

Add to Cart

Free Shipping

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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

4714892

Mfg#:

JB4-OBDII-CA-MC

$30.00 USD

Add to Cart

Lifetime Replacement