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BMW E90 335i N54 3.0L

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BMW E90 335i N54 3.0L Performance Engine Parts

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Thermostat Installation Kit with Thermostat

It's no secret that modern turbocharged BMW engines run hot. Whether you're turning laps at the track or sitting in summer traffic, high oil temperatures are the enemy of engine longevity and performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481206
Mfg#:
OTN54.T85KT2
In Stock
ON SALE!
$390.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B58 Ignition Coil Conversion Kit - N54

ES#4858895 - 053328LA - B58 Ignition Coil Conversion Kit - N54 - The ULTIMATE N54 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 N54 ignition system upgrade! This plug-and-play conversion kit offers a 2.3x increase in spark energy and supports over 1000 HP. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4858895
Mfg#:
053328LA
In Stock
ON SALE!
Starting at $436.04 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9X 335 Performance Valved Cat-Back Exhaust

ES#4001141 - 003378tmsKT - E9X 335 Performance Valved Cat-Back Exhaust - Go from mild to wild with the press of a button! For E90/E92 N54 & N55 cars - Turner Motorsport - BMW
ECS Tuning recommends this product.

Go from mild to wild with the press of a button! For E90/E92 N54 & N55 cars affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4001141
Mfg#:
003378TMSKT
In Stock
ON SALE! SAVE 10%
$1869.95

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

$1682.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Billet Cylinder Head Outlet Hose Adapter

ES#3552811 - 024797ECS01 - ECS Billet Cylinder Head Outlet Hose Adapter - Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. - ECS - BMW

Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3552811
Mfg#:
024797ECS01
In Stock
ON SALE! SAVE 25%
$76.99

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

$57.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AEM V3 Water/Methanol Injection Kit (30-3300)

ES#517900 - 30-3000 - AEM V3 Water/Methanol Injection Kit (30-3300) - Increase power and efficiency while decreasing combustion temperatures - AEM Electronics - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Increase power and efficiency while decreasing combustion temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AEM Electronics - Corporate Logo
ES#:
517900
Mfg#:
30-3000
In Stock
11% off MSRP

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

$674.95

This product was last offered at the strikethrough price on
07-04-2026

$599.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VRSF 3" Stainless Steel Catted Downpipes

ES#3984909 - 10902011 - VRSF 3" Stainless Steel Catted Downpipes - 3" Stainless Steel Downpipes with High Flow Catalytic Converter - VRSF - BMW

3" Stainless Steel Downpipes with High Flow Catalytic Converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
VRSF - Corporate Logo
ES#:
3984909
Mfg#:
10902011
In Stock
$529.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Low-Pressure Bucketless Fuel Pump - Stage 3

ES#4465071 - 601-0018 - Low-Pressure Bucketless Fuel Pump - Stage 3 - Increased fueling for bigger power - supports up to 1050whp! Modular design for future upgrades! - Precision Raceworks - BMW

Increased fueling for bigger power - supports up to 1050whp! Modular design for future upgrades! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4465071
Mfg#:
601-0018
In Stock
$549.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Universal Turner Baffled Oil Catch Can Kit - 10oz

ES#3458268 - 022798tms01-09KT - Complete Universal Turner Baffled Oil Catch Can Kit - 10oz - A 4 chamber, baffled oil catch can complete with a universal mount and drain system! - Turner Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

A 4 chamber, baffled oil catch can complete with a universal mount and drain system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3458268
Mfg#:
022798TMS01-09KT
In Stock
ON SALE! SAVE 15%
$305.99

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

$260.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vargas Turbo N54 OE Plus Replacement Turbos - 335 LHD

ES#3438167 - VTT-STK-NEW - Vargas Turbo N54 OE Plus Replacement Turbos - 335 LHD - New turbos with upgraded internals including upgraded wastegate and new actuators - supports up to 500 HP at the wheels! No core charge. - Vargas Turbo Technologies - BMW

New turbos with upgraded internals including upgraded wastegate and new actuators - supports up to 500 HP at the wheels! No core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
These are brand new turbos, not remanufactured so no core charge!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
3438167
Mfg#:
VTT-STK-NEW
In Stock at Vendor
ON SALE!
Starting at $1297.09 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Stage 2+ Turbo Upgrade

ES#4476296 - CTS-TR-0300-RS - CTS Stage 2+ Turbo Upgrade - A perfect upgrade for those looking for big power gains with no core required! - CTS - BMW

A perfect upgrade for those looking for big power gains with no core required! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4476296
Mfg#:
CTS-TR-0300-RS
Back Ordered
Auto Notify
$1699.99 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
THOR - Corporate Logo
ES#:
3659328
Mfg#:
OBD2WIFI1
In Stock
$58.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 Billet Oil Cooler Housing

ES#4809843 - 008731la01KT - N54/N55 Billet Oil Cooler Housing - Reduce oil temperatures with the upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option. - Turner Motorsport - BMW

Reduce oil temperatures with the upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4809843
Mfg#:
008731LA01KT
Ships on Nov 12, 2026
Auto Notify
ON SALE! SAVE 25%
$343.99

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

$257.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mosselman Billet Oil Thermostat With Installation Kit

ES#4772311 - otn54.t85KT - Mosselman Billet Oil Thermostat With Installation Kit - The MSL thermostat ensures a cooler oil temperature which will result in more stable performance - Mosselman Turbosystems - BMW

The MSL thermostat ensures a cooler oil temperature which will result in more stable performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mosselman Turbosystems - Corporate Logo
ES#:
4772311
Mfg#:
OTN54.T85KT
Ships in 4 Business Days
$433.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Connecting Rod Bearing Set of 2 Pairs - Std. Size

ES#4069250 - CR222SV - Connecting Rod Bearing Set of 2 Pairs - Std. Size - Replace those Worn Out Rod Bearings! - King - BMW

Replace those Worn Out Rod Bearings! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Standard Size

Brand:
King - Corporate Logo
ES#:
4069250
Mfg#:
CR222SV
In Stock
$52.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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