Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW 335i Performance ECU & TCU Tuning

Sort By
Filter By
Return to Top

RaceChip Tuning Module

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 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
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JB4 Anti Lag Kit

ES#3545487 - BMS-JB4-ALK - JB4 Anti Lag Kit - Instant boost! - Burger Motorsports - BMW

Instant boost!

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
Scratch and Dent Item

MHD CAN FlexFuel Analyzer - F-Chassis AT *Scratch And Dent*

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!
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
ON SALE! SAVE 30%
$490.00

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

$343.00 USD
Free Shipping
on orders $49 and up

Weistec BMW N55 W.2 ECU Tune

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! This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4708349
Mfg#:
05-455-00076-2KT
Ships in 1 Business Day
$1299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Weistec BMW N55 W.1 ECU Tune

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! This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4708348
Mfg#:
05-455-00075-1KT
Ships in 1 Business Day
$1199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

SCORCHER BLUE Power Module

ES#3981359 - 77-86311 - SCORCHER BLUE Power Module - Increase performance without sacrificing reliability - AFE - BMW

Increase performance without sacrificing reliability

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
07-21-2026

$581.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MHD Wireless OBDII "Universal" Wifi Flash Adapter V2

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! 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
This product is lifetime replacement eligible Lifetime Replacement

MHD CAN FlexFuel Analyzer - F-Chassis AT

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. 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

Thor OBD II Wifi Dongle

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!

Brand:
THOR - Corporate Logo
ES#:
3659328
Mfg#:
OBD2WIFI1
In Stock
$58.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

XHP Flashtool Wifi OBD Adapter

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.

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

xA Ultra WiFi Adapter

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

Brand:
xHP - Corporate Logo
ES#:
5435385
Mfg#:
XA-ULTRA-ADAPTER
Ships in 8 Business Days
Auto Notify
$109.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Injen X-Pedal Pro Black Edition Throttle Controller - BMW

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!

Brand:
Injen - Corporate Logo
ES#:
4304635
Mfg#:
PT0008B
In Stock at Vendor
$263.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JB4 OBDII Cable - 2 Position (Cable Only)

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.

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

JB4 OBDII Cable - With JB4 side Repair Harness

ES#4714892 - JB4-OBDII-CA-MC - JB4 OBDII Cable - With JB4 side Repair Harness - 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. - 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. Includes JB4 side repair harness molex pigtail.

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714892
Mfg#:
JB4-OBDII-CA-MC
Ships on Aug 6, 2026
$30.00 USD
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