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BMW E90 335i N55 Most Popular Parts

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Voltage Regulator

ES#3191627 - 12317561939 - Voltage Regulator - Get back on the road without having to swap an entire alternator. - Bosch - BMW
ECS Tuning recommends this product.

Get back on the road without having to swap an entire alternator. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! For vehicles with 180 AMP Bosch Alternator

Brand:
Bosch - Corporate Logo
ES#:
3191627
Mfg#:
12317561939
In Stock
$61.91 USD
Free Shipping
on orders $49 and up
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

SPEC Stage 2 Performance Clutch Kit With Billet Single Mass Flywheel

ES#4752645 - SB53A-3-STG-2KT - SPEC Stage 2 Performance Clutch Kit With Billet Single Mass Flywheel - Max torque capacity of 485 ft-lbs with SPEC Billet Flyhweel! - Assembled By ECS - BMW

Max torque capacity of 485 ft-lbs with SPEC Billet Flyhweel! 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles with Production Date from 02/09 with 6 Bolt Crank
For Vehicles with Production Date from 02/09 with 6 Bolt Crank

Brand:
Assembled By ECS - Corporate Logo
ES#:
4752645
Mfg#:
SB53A-3-STG-2KT
Back Ordered
Auto Notify
$1547.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Slider Seat Side Mount Kit (Left)

ES#4883382 - SM-E92-L-S1 - Adjustable Slider Seat Side Mount Kit (Left) - This premium-quality kit features a 3mm carbon steel base and side mounts, CNC laser cut and CNC bent for precision, offering durability and a perfect fit for a wide range of BMW models. - Pro Car Innovations - BMW

This premium-quality kit features a 3mm carbon steel base and side mounts, CNC laser cut and CNC bent for precision, offering durability and a perfect fit for a wide range of BMW models.

Brand:
Pro Car Innovations
ES#:
4883382
Mfg#:
SM-E92-L-S1
In Stock
$385.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

Rear Wheel Bearing - Priced Each

ES#2588789 - 33416762321 - Rear Wheel Bearing - Priced Each - Bearing Only - No Hardware - FAG - BMW
ECS Tuning recommends this product.

Bearing Only - No Hardware

Brand:
FAG - Corporate Logo
ES#:
2588789
Mfg#:
33416762321
In Stock
$54.99 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

Spark Plug - Priced Each (ZR5TPP33)

ES#2538491 - 12120037582 - Spark Plug - Priced Each (ZR5TPP33) - Keep your motor running smoothly, and avoid misfires with new spark plugs - Bosch - BMW
ECS Tuning recommends this product.

Keep your motor running smoothly, and avoid misfires with new spark plugs 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2538491
Mfg#:
12120037582
In Stock
$9.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Eccentric shaft bearing - priced each

ES#2144669 - 11377615379 - Eccentric shaft bearing - priced each - Needle bearing for the adjuster cam shaft - Genuine BMW - BMW

Needle bearing for the adjuster cam shaft

Brand:
Genuine BMW - Corporate Logo
ES#:
2144669
Mfg#:
11377615379
In Stock
5% off MSRP

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

$19.95

This product was last offered at the strikethrough price on
08-21-2026

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Priced Each (Fits Both Left and Right Side)

ES#2869641 - 22116760330 - Engine Mount - Priced Each (Fits Both Left and Right Side) - Keep your engine securely mounted - Febi - BMW

Keep your engine securely mounted 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2869641
Mfg#:
22116760330
In Stock
$82.99

This product was last offered at the strikethrough price on
05-10-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" BBS LM-R Wheels - Staggered Set Of Four

ES#3515049 - lmrdbpk19sKT - 19" BBS LM-R Wheels - Staggered Set Of Four - 19x8.5 ET32 / 19x9.5 ET25 5x120 72.6CB - Diamond Black Center with Diamond Cut Lip - BBS - BMW

19x8.5 ET32 / 19x9.5 ET25 5x120 72.6CB - Diamond Black Center with Diamond Cut Lip

Brand:
BBS - Corporate Logo
ES#:
3515049
Mfg#:
LMRDBPK19SKT
Ships on Sep 9, 2026
$7599.00 USD
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pressure Sensor

ES#3603812 - 13537620946 - High Pressure Fuel Pressure Sensor - A vital component for high pressure fuel system function - Bosch - BMW MINI
ECS Tuning recommends this product.

A vital component for high pressure fuel system function 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3603812
Mfg#:
13537620946
In Stock
$101.99

This product was last offered at the strikethrough price on
03-17-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Optima YELLOWTOP High Performance AGM Battery - H6

ES#3639387 - 9048-148 - Optima YELLOWTOP High Performance AGM Battery - H6 - Upgrade to the true dual purpose heavy duty battery with a longer life span - Optima - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade to the true dual purpose heavy duty battery with a longer life span This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Optima - Corporate Logo
ES#:
3639387
Mfg#:
9048-148
Ships in 3 Business Days
$468.99 USD
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

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