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 335i Performance ECU & TCU Tuning

Sort By
Filter By
Return to Top
ES#4339320 - 916730 - RaceChip S - Harness Type A *Open Box - New Product* - Get up to +51 hp and +70 lb-ft through a safe and easy to use tuning module from RaceChip *Open Box - New Product* - Race Chip - BMW

Get up to +51 hp and +70 lb-ft through a safe and easy to use tuning module from RaceChip *Open Box - New Product* affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race Chip - Corporate Logo
ES#:
4339320
Mfg#:
916730
In Stock
$239.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4349572 - RACECHIPN55 - RaceChip Tuning Module - Unlock the hidden potential from your BMW with a safe and easy to use module from RaceChip. Options for both harness types A and B - Race Chip - BMW

Unlock the hidden potential from your BMW with a safe and easy to use module from RaceChip. Options for both harness types A and B affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
BMW used two different engine harnesses, please confirm if you have type A or B before ordering

Brand:
Race Chip - Corporate Logo
ES#:
4349572
Mfg#:
RACECHIPN55
In Stock
Starting at $0.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3545487 - BMS-JB4-ALK - JB4 Anti Lag Kit - Instant boost! - Burger Motorsports - BMW

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

Brand:
Burger Motorsports - Corporate Logo
ES#:
3545487
Mfg#:
BMS-JB4-ALK
Ships in 2 Business Days
$50.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5457704 - ECAFB58AT - MHD CAN FlexFuel Analyzer - F-Chassis AT *Scratch And Dent* - Enable flex-fuel features on your tuned BMW with this plug and play kit! Compatible with MHD, BM3, or ECUTEK tunes and works with any High Pressure Fuel Pump. - Scratch & Dent - BMW

Enable flex-fuel features on your tuned BMW with this plug and play kit! Compatible with MHD, BM3, or ECUTEK tunes and works with any High Pressure Fuel Pump. ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with an Automatic Transmission only
For models with an Automatic Transmission ONLY. Compatible with MHD, BM3, or ECUTEK Tunes

Brand:
Scratch & Dent - Corporate Logo
ES#:
5457704
Mfg#:
ECAFB58AT
In Stock
Limited Qty Sale
$490.00

This product was last offered at the strikethrough price on
05-14-2026

$460.00 USD
Free Shipping
on orders $49 and up
ES#4680073 - N55-PORTINJCONMO - BMS JB4 Port Injection Controller - N55 E-Chassis - Attaches to the JB4 allowing it to directly control both traditional port injection kits and WMI port injection kits. - Burger Motorsports - BMW

Attaches to the JB4 allowing it to directly control both traditional port injection kits and WMI port injection kits. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For N55 equipped E chassis vehicles only

Brand:
Burger Motorsports - Corporate Logo
ES#:
4680073
Mfg#:
N55-PORTINJCONMO
Ships on Jun 22, 2026
$349.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4708349 - 05-455-00076-2KT - Weistec BMW N55 W.2 ECU Tune - Increase of +96 Horsepower, and +94 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - BMW

Increase of +96 Horsepower, and +94 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4708349
Mfg#:
05-455-00076-2KT
Ships in 5 Business Days
$1299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4708348 - 05-455-00075-1KT - Weistec BMW N55 W.1 ECU Tune  - Increase of +75 Horsepower, and +71 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - BMW

Increase of +75 Horsepower, and +71 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4708348
Mfg#:
05-455-00075-1KT
Ships in 5 Business Days
$1199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3981359 - 77-86311 - SCORCHER BLUE Power Module - Increase performance without sacrificing reliability - AFE - BMW

Increase performance without sacrificing reliability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3981359
Mfg#:
77-86311
Back Ordered
20% off MSRP

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

$726.99

This product was last offered at the strikethrough price on
06-04-2026

$581.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4615596 - MHDWIRELESSV2 - MHD Wireless OBDII "Universal" Wifi Flash Adapter V2 - 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! - MHD Tuning - BMW

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:
MHD Tuning - Corporate Logo
ES#:
4615596
Mfg#:
MHDWIRELESSV2
In Stock
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4690035 - ECA-F-B58-AT - MHD CAN FlexFuel Analyzer - F-Chassis AT - Enable flex-fuel features on your tuned BMW with this plug and play kit! Compatible with MHD, BM3, or ECUTEK tunes and works with any High Pressure Fuel Pump. - MHD Tuning - BMW

Enable flex-fuel features on your tuned BMW with this plug and play kit! Compatible with MHD, BM3, or ECUTEK tunes and works with any High Pressure Fuel Pump. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with an Automatic Transmission only
For models with an Automatic Transmission ONLY. Compatible with MHD, BM3, or ECUTEK Tunes

Brand:
MHD Tuning - Corporate Logo
ES#:
4690035
Mfg#:
ECA-F-B58-AT
In Stock
$490.00 USD
Free Shipping
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#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#4304635 - PT0008B - Injen X-Pedal Pro Black Edition Throttle Controller - BMW - Tune out the delayed throttle response from the factory with Injens X-Pedal Pro Black Edition and revamp your driving experience! - Injen - BMW MINI

Tune out the delayed throttle response from the factory with Injen’s X-Pedal Pro Black Edition and revamp your driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Injen - Corporate Logo
ES#:
4304635
Mfg#:
PT0008B
In Stock at Vendor
ON SALE! SAVE 15%
$243.99

This product was last offered at the strikethrough price on
05-15-2026

$207.19 USD
Free Shipping
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#4714891 - JB4-OBDII-CA - JB4 OBDII Cable - 2 Position (Cable Only) - Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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:
Burger Motorsports - Corporate Logo
ES#:
4714891
Mfg#:
JB4-OBDII-CA
In Stock
$25.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4940110 - JB4-OBDII-4P7FCA - JB4 OBDII Cable Replacement - 4 Position (Cable Only) - Version 1. - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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

Brand:
Burger Motorsports - Corporate Logo
ES#:
4940110
Mfg#:
JB4-OBDII-4P7FCA
In Stock
$25.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance ECU & TCU Tuning

All the performance ECU/TCU upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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