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BMW 135i Performance ECU & TCU Tuning

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RaceChip GTS Black With App Control - Harness Type B

ES#4349394 - 916736B - RaceChip GTS Black With App Control - Harness Type B - Get up to +75 hp and +105 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip - Race Chip - BMW

Get up to +75 hp and +105 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4349394
Mfg#:
916736B
Ships on Nov 9, 2026
$658.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 JB+ Quick Install Tuner

ES#3508714 - JBPLUS - N54 JB+ Quick Install Tuner - Plug & play power gain up to 40 horsepower in under one minute! 50 state legal performance! - Burger Motorsports - BMW

Plug & play power — gain up to 40 horsepower in under one minute! 50 state legal performance! CARB Approved - Legal in All 50 States! CARB certified for sale in all 50 states

Brand:
Burger Motorsports - Corporate Logo
ES#:
3508714
Mfg#:
JBPLUS
EO#:
D-744-3
Ships in 3 Business Days
$279.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFE Scorcher Power Module

ES#3149349 - 77-46311 - AFE Scorcher Power Module - Increase power without sacrificing reliability - AFE - BMW

Increase power without sacrificing reliability Add up to 40hp and 80lbs/ft. torque to your N55 today!
For vehicles with production date from 03/2011

Brand:
AFE - Corporate Logo
ES#:
3149349
Mfg#:
77-46311
Ships in 3 Business Days
ON SALE!
$451.00

This product was last offered at the strikethrough price on
10-19-2026

$417.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFE Scorcher Power Module

ES#2703096 - 77-46302 - AFE Scorcher Power Module - Increase power without sacrificing reliability - AFE - BMW

Increase power without sacrificing reliability Adds up to 40hp and 51lbs. x ft. torque - instantly!

Brand:
AFE - Corporate Logo
ES#:
2703096
Mfg#:
77-46302
Ships in 3 Business Days
ON SALE!
$399.00

This product was last offered at the strikethrough price on
10-19-2026

$369.08 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMS Stage 1 Tuner - N55 - Type A Harness

ES#3508733 - S1-N55-A - BMS Stage 1 Tuner - N55 - Type A Harness - Maintain driveability and reliability while adding up to 40 HP and 55 lb/ft of torque! For 2011 to early 2012 vehicles. - Burger Motorsports - BMW

Maintain driveability and reliability while adding up to 40 HP and 55 lb/ft of torque! For 2011 to early 2012 vehicles. Not for sale or use in the state of California.
For 2011 to early 2012 vehicles with type A TMAP harness only!

Brand:
Burger Motorsports - Corporate Logo
ES#:
3508733
Mfg#:
S1-N55-A
Ships on Nov 4, 2026
$399.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JB4 N54 2 Step / NLS Relay

ES#4070831 - JB4N542STEP - JB4 N54 2 Step / NLS Relay - This add on kit for BMW N54 engines allows your JB4 to "2step" the engine - Burger Motorsports - BMW

This add on kit for BMW N54 engines allows your JB4 to "2step" the engine

Brand:
Burger Motorsports - Corporate Logo
ES#:
4070831
Mfg#:
JB4N542STEP
Ships in 1 Business Day
$35.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RaceChip S - Harness Type A

ES#4339320 - 916730 - RaceChip S - Harness Type A - Get up to +51 hp and +70 lb-ft through a safe and easy to use tuning module from RaceChip - Race Chip - BMW

Get up to +51 hp and +70 lb-ft through a safe and easy to use tuning module from RaceChip

Brand:
Race Chip - Corporate Logo
ES#:
4339320
Mfg#:
916730
Ships on Nov 9, 2026
$239.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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
Ships on Nov 9, 2026
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

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!

Brand:
Weistec - Corporate Logo
ES#:
4708349
Mfg#:
05-455-00076-2KT
Ships in 1 Business Day
$1299.00 USD
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!

Brand:
Weistec - Corporate Logo
ES#:
4708348
Mfg#:
05-455-00075-1KT
Ships in 1 Business Day
$1199.00 USD
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
ON SALE!
$581.00

This product was last offered at the strikethrough price on
10-19-2026

$537.43 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

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

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
Back Ordered
$109.00 USD
Free Shipping
on orders $49 and up
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

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.

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