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BMW 135i Performance Parts & Upgrades

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Wheel Spacer & Bolt Kit - 5mm

ES#205203 - ECS#252KTWB - Wheel Spacer & Bolt Kit - 5mm - Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW - ECS - BMW

Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
205203
Mfg#:
ECS#252KTWB
In Stock
ON SALE! SAVE 20%
$122.99

This product was last offered at the strikethrough price on
06-13-2026

$98.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Adjustable Sway Bar End Link Kit

ES#3086273 - TRC10200 - Front Adjustable Sway Bar End Link Kit - Adjustable from 254mm-305mm - 10mm Ball End - SuperPro - BMW

Adjustable from 254mm-305mm - 10mm Ball End

Brand:
SuperPro - Corporate Logo
ES#:
3086273
Mfg#:
TRC10200
Ships in 1 Business Day
$165.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

9" Twin Disc Clutch and Flywheel Kit - Solid Ceramic Discs

ES#4689885 - XKBM23594-2E - 9" Twin Disc Clutch and Flywheel Kit - Solid Ceramic Discs - The twin disc 9 inch with ceramic friction discs is designed for high horsepower motorsport applications where a high heat and torque capacity is required. Rated for 1350 ft-lb! - XClutch - BMW

The twin disc 9 inch with ceramic friction discs is designed for high horsepower motorsport applications where a high heat and torque capacity is required. Rated for 1350 ft-lb! For 6 bolt crank applications only
For vehicles with 6 bolt crank/flywheel only

Brand:
XClutch - Corporate Logo
ES#:
4689885
Mfg#:
XKBM23594-2E
In Stock
$1982.99 USD
Free Shipping

Kies WiFi ENET Adapter - F/G Chassis

ES#4430607 - KIES07-WIFI-AD - Kies WiFi ENET Adapter - F/G Chassis - With the all-new Kies WiFi Enet Adapter, you can now use your favorite apps, wirelessly, from one convenient dongle! - Kies Motorsports - BMW MINI

With the all-new Kies WiFi Enet Adapter, you can now use your favorite apps, wirelessly, from one convenient dongle!

Brand:
Kies Motorsports - Corporate Logo
ES#:
4430607
Mfg#:
KIES07-WIFI-AD
In Stock
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - N55

ES#4447424 - 12138657273KT6 - Ignition Service Kit - N55 - Everything you need to service your ignition system - Assembled By ECS - BMW

Everything you need to service your ignition system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4447424
Mfg#:
12138657273KT6
In Stock
$271.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B58 Ignition Coil Conversion Kit - Early N55

ES#4858896 - 053681LA - B58 Ignition Coil Conversion Kit - Early N55 - The ULTIMATE N55 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP. - Turner Motorsport - BMW

The ULTIMATE N55 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP. 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles Produced Before 01/2011

Brand:
Turner Motorsport - Corporate Logo
ES#:
4858896
Mfg#:
053681LA
In Stock
ON SALE!
Starting at $413.09 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2-Piece Lightweight Front Brake Rotors - Pair (338x26)

ES#2550968 - 000506ECS01AKT - 2-Piece Lightweight Front Brake Rotors - Pair (338x26) - Direct bolt-on cross-drilled and slotted replacement - 20% less weight. Offers improved braking, handling, and ride quality! - ECS - BMW

Direct bolt-on cross-drilled and slotted replacement - 20% less weight. Offers improved braking, handling, and ride quality! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2550968
Mfg#:
000506ECS01AKT
In Stock
ON SALE! SAVE 10%
$787.99

This product was last offered at the strikethrough price on
06-13-2026

$709.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW Atmospheric Diverter Valve Spacer - Black

ES#4465097 - 019477LA01-01 - BMW Atmospheric Diverter Valve Spacer - Black - Let your turbo blow off some air for an exhilarating driving experience! - ECS - BMW

Let your turbo blow off some air for an exhilarating driving experience! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4465097
Mfg#:
019477LA01-01
In Stock
ON SALE! SAVE 25%
$90.99

This product was last offered at the strikethrough price on
06-13-2026

$68.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 PURE600 Turbo Upgrade - PWG

ES#4883386 - bmw-n55-pure-600 - N55 PURE600 Turbo Upgrade - PWG - Capable of supporting 550+ wheel horsepower - Pure Turbos - BMW

Capable of supporting 550+ wheel horsepower

Brand:
Pure Turbos - Corporate Logo
ES#:
4883386
Mfg#:
BMW-N55-PURE-600
In Stock
$2589.00 USD

Low-Pressure Bucketless Fuel Pump - Stage 2

ES#4364608 - 601-0017 - Low-Pressure Bucketless Fuel Pump - Stage 2 - Increased fueling for bigger power - supports up to 600whp! Modular design for future upgrades! - Precision Raceworks - BMW

Increased fueling for bigger power - supports up to 600whp! Modular design for future upgrades!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4364608
Mfg#:
601-0017
In Stock
$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MMX Crank Hub Kit

ES#4429936 - MMR20-1003FK - MMX Crank Hub Kit - Install MMX's One-Piece Crank Hub as a Solution to Hub Slippage! Includes a Capture Plate for Extra Security against parts Loosening. - MMX Performance - BMW

Install MMX's One-Piece Crank Hub as a Solution to Hub Slippage! Includes a Capture Plate for Extra Security against parts Loosening.

Brand:
MMX Performance - Corporate Logo
ES#:
4429936
Mfg#:
MMR20-1003FK
Ships in 2 Business Days
$849.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 Performance Radiator Kit - Automatic/DCT

ES#4730412 - 17117547059eKT - N54 Performance Radiator Kit - Automatic/DCT - Features A CSF High Performance Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. - Assembled By ECS - BMW

Features A CSF High Performance Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4730412
Mfg#:
17117547059EKT
In Stock
ON SALE!
$1115.99

This product was last offered at the strikethrough price on
06-16-2026

$1092.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E9X N54/N55 6MT High-Performance Dual Core Aluminum Radiator

ES#4839753 - 004443LA01 - E9X N54/N55 6MT High-Performance Dual Core Aluminum Radiator - Track-tested and street-readythe ULTIMATE cooling system upgrade for your N54 or N55! - Turner Motorsport - BMW

Track-tested and street-ready—the ULTIMATE cooling system upgrade for your N54 or N55! 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
For vehicles with manual transmission only

Brand:
Turner Motorsport - Corporate Logo
ES#:
4839753
Mfg#:
004443LA01
In Stock
ON SALE!
$604.99

This product was last offered at the strikethrough price on
06-13-2026

$586.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B16 PSS10 Coilover System - Comfort Version

ES#3219279 - 48-195232 - B16 PSS10 Coilover System - Comfort Version - Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - BMW

Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
3219279
Mfg#:
48-195232
Ships on Jan 4, 2027
$2499.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N54

ES#4485240 - 7pk1855 - Performance Kevlar Reinforced Belt - N54 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485240
Mfg#:
7PK1855
Ships on Nov 12, 2026
Auto Notify
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

TC Kline Racing Single Adjustable Street/Track Coilover Kit

ES#4069950 - TCKE9XSingleKit - TC Kline Racing Single Adjustable Street/Track Coilover Kit - Lifetime warranty on street-driven cars! Featuring proprietary single-adjustable Koni dampers, front camber plates, and 300#F/600#R springs - TC Kline Racing - BMW

Lifetime warranty on street-driven cars! Featuring proprietary single-adjustable Koni dampers, front camber plates, and 300#F/600#R springs

Brand:
TC Kline Racing - Corporate Logo
ES#:
4069950
Mfg#:
TCKE9XSINGLEKIT
Ships in 1 Business Day
$2484.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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