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 135i Performance Engine & Drivetrain Parts

Sort By
Filter By
Return to Top

Polyurethane Transmission mount Set - Street/Track

ES#2718367 - 002705ECS01 - Polyurethane Transmission mount Set - Street/Track - 80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. - ECS - BMW

80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2718367
Mfg#:
002705ECS01
In Stock
ON SALE! SAVE 15%
$115.99

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

$98.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Kohlefaser Luft-Technik Intake System

ES#2713282 - 000951ECS - Kohlefaser Luft-Technik Intake System - In-house engineered to maximize intake airflow for dyno-proven, industry-leading power gains: up to 18hp and 13ft-lbs of torque - at the wheels! - ECS - BMW

In-house engineered to maximize intake airflow for dyno-proven, industry-leading power gains: up to 18hp and 13ft-lbs of torque - at the wheels! 10X Entries For Our 25th Anniversary Sweepstakes!
Hand-laid carbon fiber construction for light weight and dramatic style.

Brand:
ECS - Corporate Logo
ES#:
2713282
Mfg#:
000951ECS
In Stock
ON SALE! SAVE 15%
$1150.99

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

$978.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876652 - 049453LA01-02KT8 - N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt - Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! - Enthusiast Bundles - BMW

Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876652
Mfg#:
049453LA01-02KT8
Ships on Oct 27, 2026
Auto Notify
ON SALE! SAVE 47%
$170.99

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

$91.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Aluminum Coolant Expansion Tank Relocation Kit - 135i

ES#3647096 - 021942TMS14 - N54 Aluminum Coolant Expansion Tank Relocation Kit - 135i - Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! - Turner Motorsport - BMW

Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! 10X Entries For Our 25th Anniversary Sweepstakes!
Compatible with factory/aftermarket cold side intakes as well as hot side intakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3647096
Mfg#:
021942TMS14
In Stock
ON SALE! SAVE 15%
$815.99

This product was last offered at the strikethrough price on
05-02-2026

$693.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMP Cylinder Head Coolant Flange

ES#4880971 - 601-0003 - BMP Cylinder Head Coolant Flange - Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail - Precision Raceworks - BMW

Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail

Brand:
Precision Raceworks - Corporate Logo
ES#:
4880971
Mfg#:
601-0003
In Stock
$24.99 USD
Free Shipping
on orders $49 and up

N54/N55 Performance Stepped Intercooler

ES#4920130 - 004253LA02 - N54/N55 Performance Stepped Intercooler - Increased charge air volume and inflow area delivering lower intake air temperatures and increased performance. - Turner Motorsport - BMW

Increased charge air volume and inflow area delivering lower intake air temperatures and increased performance. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4920130
Mfg#:
004253LA02
In Stock
ON SALE! SAVE 15%
$478.99

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

$407.14 USD
Free Shipping

N55 PURE750 Turbo Upgrade - PWG

ES#4658299 - N55Pure750PWG - N55 PURE750 Turbo Upgrade - PWG - Supports up to 600 HP with supplemental fueling upgrades! Experience increased flow and quicker spool! - Pure Turbos - BMW

Supports up to 600 HP with supplemental fueling upgrades! Experience increased flow and quicker spool! PWG models only

Brand:
Pure Turbos - Corporate Logo
ES#:
4658299
Mfg#:
N55PURE750PWG
Ships in 9 Business Days
$3107.99

This product was last offered at the strikethrough price on
07-13-2026

$3107.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning N54 Baffled Oil Catch Can System

ES#3194544 - 003779ECS - ECS Tuning N54 Baffled Oil Catch Can System - Utilizing the high pressure PCV circuit for maximum results reducing the need for walnut blasting - ECS - BMW

Utilizing the high pressure PCV circuit for maximum results reducing the need for walnut blasting 10X Entries For Our 25th Anniversary Sweepstakes!
Highly effective can with precise fitment and featuring AN fitting-equipped lines for a leak free install

Brand:
ECS - Corporate Logo
ES#:
3194544
Mfg#:
003779ECS
In Stock
ON SALE!
Starting at $228.77 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.46 Pumpkin With Helical LSD - 188 Diff (Small Case)

ES#2877643 - mf-trs-05e9234KT - 3.46 Pumpkin With Helical LSD - 188 Diff (Small Case) - Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. - Team MFactory - BMW

Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. Includes new pumpkin for a complete bolt-in replacement! Includes $650 refundable core charge.

Brand:
Team MFactory - Corporate Logo
ES#:
2877643
Mfg#:
MF-TRS-05E9234KT
Ships in 9 Business Days
$2276.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Short-Shifter Kit

ES#3149099 - D550-1005 - Billet Short-Shifter Kit - Reduce shift throw without increased noise - civilized performance for the discerning enthusiast - Dinan - BMW

Reduce shift throw without increased noise - civilized performance for the discerning enthusiast Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
3149099
Mfg#:
D550-1005
Ships in 4 Business Days
11% off MSRP

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

$310.99

This product was last offered at the strikethrough price on
07-28-2026

$275.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Baffled Oil Catch Can - 8oz

ES#4369812 - 003779ECS05-02 - ECS Tuning Baffled Oil Catch Can - 8oz - Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! - ECS - Audi BMW Volkswagen MINI

Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! 10X Entries For Our 25th Anniversary Sweepstakes!
For use with custom plumbing and ECS universal mounting bracket kit

Brand:
ECS - Corporate Logo
ES#:
4369812
Mfg#:
003779ECS05-02
In Stock
ON SALE! SAVE 10%
$238.99

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

$215.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Helical Limited Slip Differential

ES#2795354 - MF-TRS-05E92 - Helical Limited Slip Differential - Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. - Team MFactory - BMW

Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. Any defects or warranty clams will have to go directly to Team M Factory

Brand:
Team MFactory - Corporate Logo
ES#:
2795354
Mfg#:
MF-TRS-05E92
Ships in 4 Business Days
5% off MSRP

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

$1049.99

This product was last offered at the strikethrough price on
07-28-2026

$999.99 USD
Free Shipping
on orders $49 and up

N55/S55 37cc Platinum Series Dish Piston Set

ES#4685603 - 647000C-6 - N55/S55 37cc Platinum Series Dish Piston Set - Upgrade to Manley's Platinum Series Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Series Pistons for increased performance! Stock 10.2:1 Compression Ratio Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685603
Mfg#:
647000C-6
In Stock at Vendor
8% off MSRP

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

$1208.99

This product was last offered at the strikethrough price on
07-28-2026

$1111.99 USD
Free Shipping
on orders $49 and up

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 Oct 27, 2026
Auto Notify
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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