BMW A90 MKV Supra B58 3.0L Kits

Enable flex-fuel features on your tuned BMW with this plug and play kit! Compatible with MHD or ECUTEK tunes and works with the stock or TU High Pressure Fuel Pump Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with an Automatic Transmission only
Gen 1 B58 compatible with MHD or ECUTEK tunes - Gen 2 B58 compatible - Automatic Transmission (Any HPFP) - Gen3 NOT SUPPORTED

Brand:

ES#:

4690036

Mfg#:

ECA-G-B58-S58-AT

Main Injector Harness For Installation of ReFlex+ For Inline-6 BMW Engines Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4810312

Mfg#:

900.1008

$200.00 USD

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on orders $49 and up

Lifetime Replacement

For Vehicles With Motiv ReFlex Unit Currently Installed Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For Vehicles With Motiv ReFlex Unit Currently Installed Only

Brand:

ES#:

4731941

Mfg#:

101-0212

$49.00 USD

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on orders $49 and up

Lifetime Replacement

A plug-and-play solution to add Flex Fuel capability to your BMW! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4872254

Mfg#:

BM3FFKFB58EB

8% off MSRP

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

$649.00

This product was last offered at the strikethrough price on
10-29-2026

$599.00 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4905091

Mfg#:

BM3B58OEMHPFP

$499.00 USD

Add to Cart

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on orders $49 and up

Lifetime Replacement

Unlock the true performance potential of your Gen2 B58-powered machine with the Dorch Engineering Gen2 Flex Fuel ECA Kit. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

Dorch Engineering

ES#:

5482028

Mfg#:

DE-582-ECA-TS1

$549.00 USD

Add to Cart

Lifetime Replacement

Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4715584

Mfg#:

FFK-B58S-FK

$479.99 USD

Add to Cart

Free Shipping

Lifetime Replacement

Unlock the true performance potential of your Gen2 B58-powered machine with the Dorch Engineering Gen2 Flex Fuel ECA Kit. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

Dorch Engineering

ES#:

5482029

Mfg#:

DE-582-ECA-TS2

$549.00 USD

Add to Cart

Lifetime Replacement