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BMW 135i Engine Chips, Tunes & Software

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RaceChip S - Harness Type A *Open Box - New Product*

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*

Brand:
Race Chip - Corporate Logo
ES#:
4339320
Mfg#:
916730
In Stock
ON SALE! SAVE 16%
$239.00

This product was last offered at the strikethrough price on
07-21-2026

$199.99 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
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

ReFlex+ Install Kit

ES#4810522 - 400.1001 - ReFlex+ Install Kit - Add an Install Kit to Your Motiv ReFlex Control Unit! - Motiv Motorsports - BMW

Add an Install Kit to Your Motiv ReFlex Control Unit!

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810522
Mfg#:
400.1001
Ships in 5 Business Days
$15.00 USD
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

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 19, 2026
$30.00 USD
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! 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
ON SALE!
$581.00

This product was last offered at the strikethrough price on
08-03-2026

$537.43 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Chips, Tunes & Software

Add power and performance with special software upgrades from recognized tuning leaders like APR, Cobb, and Malone. Let our trained support staff show you how to pick the performance software upgrade that suits your driving preferences and budget.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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