Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

BMW M3 ECU Parts

Sort By
Filter By
Return to Top
ES#4690160 - RFXF02UI6 - Motiv ReFlex+ - Take your Inline-6 BMW to The Next Level With this all in one Tuning Solution! - Motiv Motorsports - BMW

Take your Inline-6 BMW to The Next Level With this all in one Tuning Solution! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4690160
Mfg#:
RFXF02UI6
In Stock
$859.00 USD
Free Shipping
on orders $49 and up
ES#4365475 - 007629la09KT - Turner Motorsport E9x Cowl Delete Kit - Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. Compliment your engine bay and hide away the exposed ECU. - Turner Motorsport - BMW
ECS Tuning recommends this product.

Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. Compliment your engine bay and hide away the exposed ECU. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4365475
Mfg#:
007629LA09KT
In Stock
ON SALE! SAVE 27%
$411.78

This product was last offered at the strikethrough price on
05-02-2026

$299.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3659328 - OBD2WIFI1 - Thor OBD II Wifi Dongle - Access your BMWs DME wirelessly by connecting to your phone! - THOR - BMW MINI

Access your BMWs DME wirelessly by connecting to your phone! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
THOR - Corporate Logo
ES#:
3659328
Mfg#:
OBD2WIFI1
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4810266 - 900.1001 - Motiv ReFlex+ Control Unit - Enables precise control of aftermarket performance components like fuel pumps, meth injection kits, boost controllers, port injection kits - Motiv Motorsports - BMW

Enables precise control of aftermarket performance components like fuel pumps, meth injection kits, boost controllers, port injection kits affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810266
Mfg#:
900.1001
Ships in 6 Business Days
$729.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4508968 - 01KDCABLE - K+DCAN Cable - FTDI FT232RL Style OBD2 Cable - Connect to 1998-2018 BMW OBD2 systems with a laptop. - Bremmen Parts - BMW

Connect to 1998-2018 BMW OBD2 systems with a laptop. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4508968
Mfg#:
01KDCABLE
In Stock
$33.99

This product was last offered at the strikethrough price on
02-20-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4500854 - xHP-Flashtool - XHP Flashtool Wifi OBD Adapter - Access your BMWs DME wirelessly by connecting to your phone! The enthusiast's tool of choice for xHP Flashtool and many other transmission and engine tuning options. - xHP - BMW MINI

Access your BMWs DME wirelessly by connecting to your phone! The enthusiast's tool of choice for xHP Flashtool and many other transmission and engine tuning options. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
xHP - Corporate Logo
ES#:
4500854
Mfg#:
XHP-FLASHTOOL
In Stock
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4315965 - 007629LA02 - Turner Motorsport E9X Cowl Delete Harness Mounting Bracket - Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. - Turner Motorsport - BMW

Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4315965
Mfg#:
007629LA02
In Stock
ON SALE! SAVE 35%
$141.99

This product was last offered at the strikethrough price on
05-02-2026

$91.72 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4390906 - MSPNPPro-E369395 - MS3Pro PNP Plug And Play ECU - 325i/E36/M3 525/E34 1993-1995  - Replace your 413 or 506 DME with a tunable racing ECU! - MegaSquirt - BMW

Replace your “413” or “506” DME with a tunable racing ECU! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MegaSquirt - Corporate Logo
ES#:
4390906
Mfg#:
MSPNPPRO-E369395
Ships in 5 Business Days
$1499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4865971
Mfg#:
201-0409
In Stock
$213.99

This product was last offered at the strikethrough price on
01-22-2026

$199.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5435385 - xA-Ultra-Adapter - xA Ultra WiFi Adapter - The ultimate OBD adapter designed to deliver exceptional speed, maximum connection stability, and great performance for flashing, coding, and live monitoring - xHP - BMW MINI

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:
xHP - Corporate Logo
ES#:
5435385
Mfg#:
XA-ULTRA-ADAPTER
In Stock
$109.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4810316 - 900.1016 - ReFlex+ Install Harness - Flying Lead - Universal - Flying Lead Installation Harness - Motiv Motorsports - BMW

Universal - Flying Lead Installation Harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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
ES#2797603 - 12637614585 - Integrated Supply Module - Located on the right front of the engine bay. - Genuine BMW - BMW

Located on the right front of the engine bay. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2797603
Mfg#:
12637614585
Ships in 1-2 days
5% off MSRP

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

$437.99

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

$416.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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
ES#4490446 - 001658TMS01-01 - S58 Gloss Carbon Fiber ECU Cover - Upgrade and put the finishing touches on your engine bay. A full gloss 2x2 weave ECU cover to match other carbon engine bay components. - Turner Motorsport - BMW

Upgrade and put the finishing touches on your engine bay. A full gloss 2x2 weave ECU cover to match other carbon engine bay components. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4490446
Mfg#:
001658TMS01-01
In Stock
ON SALE! SAVE 37%
$282.99

This product was last offered at the strikethrough price on
05-02-2026

$177.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#32127 - 12907531783 - E-Box Fan - Keep you DME cool so the car can do its job - Genuine BMW - BMW

Keep you DME cool so the car can do its job affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
32127
Mfg#:
12907531783
Ships in 1-2 days
7% off MSRP

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

$238.99

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

$221.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings