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BMW F30 ECU Harnesses

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Plug And Play ReFlex Plus Install Harness - S58/B58

ES#4865971 - 201-0409 - Plug And Play ReFlex Plus Install Harness - S58/B58 - This harness is the perfect solution for ReFlex+ users who want a simple, reliable, and cost-effective plug-and-play option without compromising their vehicle's stock wiring. - Precision Raceworks - BMW

This harness is the perfect solution for ReFlex+ users who want a simple, reliable, and cost-effective plug-and-play option without compromising their vehicle's stock wiring. 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:
Precision Raceworks - Corporate Logo
ES#:
4865971
Mfg#:
201-0409
In Stock
$199.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Harness

ES#2079697 - 12517592508 - Engine Harness - Genuine BMW - 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:
Genuine BMW - Corporate Logo
ES#:
2079697
Mfg#:
12517592508
In Stock
5% off MSRP

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

$174.99

This product was last offered at the strikethrough price on
06-03-2026

$166.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ReFlex+ Install Harness - Flying Lead

ES#4810316 - 900.1016 - ReFlex+ Install Harness - Flying Lead - Universal - Flying Lead Installation Harness - Motiv Motorsports - BMW

Universal - Flying Lead Installation Harness 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:
Motiv Motorsports - Corporate Logo
ES#:
4810316
Mfg#:
900.1016
In Stock
$95.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Harness

ES#2537135 - 12517619142 - Engine Harness - Genuine BMW - 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:
Genuine BMW - Corporate Logo
ES#:
2537135
Mfg#:
12517619142
Ships in 1-2 days
4% off MSRP

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

$158.99

This product was last offered at the strikethrough price on
10-25-2026

$151.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ReFlex+ Plug-N-Play Harness Kit - Tensility Motorsport

ES#4810317 - 200.1058 - ReFlex+ Plug-N-Play Harness Kit - Tensility Motorsport - TMS has created a true plug and play harness kit for Gen 2 B58 and S58 cars! - Motiv Motorsports - BMW

TMS has created a true plug and play harness kit for Gen 2 B58 and S58 cars! 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:
Motiv Motorsports - Corporate Logo
ES#:
4810317
Mfg#:
200.1058
Ships in 4 Business Days
$794.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ReFlex+ Plug-N-Play Harness Kit - Visconti Tuning

ES#4810321 - 200.1103 - ReFlex+ Plug-N-Play Harness Kit - Visconti Tuning - Visconti has created a true plug and play harness kit for Gen 2 B58 and S58 cars! - Motiv Motorsports - BMW

Visconti has created a true plug and play harness kit for Gen 2 B58 and S58 cars! 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:
Motiv Motorsports - Corporate Logo
ES#:
4810321
Mfg#:
200.1103
Ships in 4 Business Days
$615.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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