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BMW 135i Performance Engine Parts

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Momentum GT PRO DRY S Cold Air Intake System

ES#3612876 - 51-76313 - Momentum GT PRO DRY S Cold Air Intake System - The Momentum GT Pro DRY S Cold Air Intake is the best system for creating power, airflow, and maximizing performance - AFE - BMW

The Momentum GT Pro DRY S Cold Air Intake is the best system for creating power, airflow, and maximizing performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3612876
Mfg#:
51-76313
Back Ordered
Auto Notify
20% off MSRP

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

$563.99

This product was last offered at the strikethrough price on
01-28-2026

$451.00 USD
This product is lifetime replacement eligible Lifetime Replacement

AEM Water/Methanol Injection System

ES#4500516 - 30-3326 - AEM Water/Methanol Injection System - High-Flow Low-Current WMI Solenoid - 200PSI 1/8in-27NPT In/Out - AEM Electronics - Audi BMW Volkswagen MINI Porsche

High-Flow Low-Current WMI Solenoid - 200PSI 1/8in-27NPT In/Out affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AEM Electronics - Corporate Logo
ES#:
4500516
Mfg#:
30-3326
In Stock
$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ethanol 360 Fittings - 3/8" (9.49mm)

ES#4877329 - 601-0288 - Ethanol 360 Fittings - 3/8" (9.49mm) - Designed to work in almost any application where you have 3/8" (9.49mm) quick connect fittings and need to add a flex fuel sensor! - Precision Raceworks - BMW

Designed to work in almost any application where you have 3/8" (9.49mm) quick connect fittings and need to add a flex fuel sensor! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Universal Product - Please confirm your fuel line size prior to ordering

Brand:
Precision Raceworks - Corporate Logo
ES#:
4877329
Mfg#:
601-0288
In Stock
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Head Stud Set Brushed For BMW N55 Engine

ES#4920574 - P102061410.BR - Head Stud Set Brushed For BMW N55 Engine - Wagner Tuning - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wagner Tuning - Corporate Logo
ES#:
4920574
Mfg#:
P102061410.BR
Ships on Jul 24, 2026
Auto Notify
$449.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E Series N55 JB4 - Type A Harness

ES#3508706 - JB4-N55-A - E Series N55 JB4 - Type A Harness - Plug & play power gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2011 model year vehicles or older. - Burger Motorsports - BMW

Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2011 model year vehicles or older. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Not for sale or use in the state of California.

Brand:
Burger Motorsports - Corporate Logo
ES#:
3508706
Mfg#:
JB4-N55-A
In Stock
$559.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E Series N55 JB4 - Type B Harness

ES#3508707 - JB4-N55-B - E Series N55 JB4 - Type B Harness - Plug & play power gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2012 and newer vehicles. - Burger Motorsports - BMW

Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2012 and newer vehicles. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Not for sale or use in the state of California.

Brand:
Burger Motorsports - Corporate Logo
ES#:
3508707
Mfg#:
JB4-N55-B
Ships in 1 Business Day
$559.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ARM N54 Lower Chargepipe Upgrade

ES#4375653 - E90LCP - ARM N54 Lower Chargepipe Upgrade - Increased air flow for 3" outlet intercoolers - ARM Motorsports - BMW

Increased air flow for 3" outlet intercoolers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ARM Motorsports - Corporate Logo
ES#:
4375653
Mfg#:
E90LCP
In Stock
$97.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E82/E88 N54 Performance Axle-Back Exhaust & Gloss Black Rear Diffuser

ES#4876606 - 019910LAEBKT - E82/E88 N54 Performance Axle-Back Exhaust & Gloss Black Rear Diffuser - A full rear end overhaul, both functionally and aesthetically! Experience increased sound and improved rear end styling! - Enthusiast Bundles - BMW

A full rear end overhaul, both functionally and aesthetically! Experience increased sound and improved rear end styling! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876606
Mfg#:
019910LAEBKT
In Stock
ON SALE! SAVE 20%
$1376.97

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

$1099.00 USD
This product is lifetime replacement eligible Lifetime Replacement

N54B30 32cc Platinum Series Dish Piston Set - N54B30

ES#4685588 - 646000C-6 - N54B30 32cc Platinum Series Dish Piston Set - N54B30 - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685588
Mfg#:
646000C-6
In Stock at Vendor
4% off MSRP

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

$1140.99

This product was last offered at the strikethrough price on
06-18-2026

$1091.99 USD
Free Shipping

Universal Oil Cooler - 19 Row

ES#2764082 - MM0CUL - Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764082
Mfg#:
MM0CUL
In Stock at Vendor
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E82/E88 N54 Performance Axle-Back Exhaust

ES#4785786 - 019910LA - E82/E88 N54 Performance Axle-Back Exhaust - Lightweight axle-back featuring an exotic exhaust note. Designed for minimal drone at driving speed and maximum volume when desired. - ECS - BMW

Lightweight axle-back featuring an exotic exhaust note. Designed for minimal drone at driving speed and maximum volume when desired. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4785786
Mfg#:
019910LA
In Stock
ON SALE!
Starting at $711.89 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supersprint Performance Muffler

ES#3033338 - 980906 - Supersprint Performance Muffler - Free flowing sound and performance - Supersprint - BMW

Free flowing sound and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3033338
Mfg#:
980906
Ships in 3 Business Days
$2106.00 USD
Free Shipping

Pedal Commander - Throttle Response Controller With Bluetooth

ES#3560716 - PC 10 - Pedal Commander - Throttle Response Controller With Bluetooth - Unleash the hidden power in your vehicle to get instant feedback & response! - Pedal Commander - BMW MINI

Unleash the hidden power in your vehicle to get instant feedback & response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pedal Commander - Corporate Logo
ES#:
3560716
Mfg#:
PC 10
In Stock
$299.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TiAL Sport Q 50mm Blow Off Valve - Black

ES#3647009 - q.11bk - TiAL Sport Q 50mm Blow Off Valve - Black - Includes an 11psi spring - Tial - BMW

Includes an 11psi spring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires welding the aluminum flange to your chargepipe - Professional installation recommended!

Brand:
Tial - Corporate Logo
ES#:
3647009
Mfg#:
Q.11BK
Ships in 7 Business Days
$299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3.5" Universal Brushed Aluminum Swivel Exhaust Tip - Priced Each

ES#4658277 - 049478LA03-04 - 3.5" Universal Brushed Aluminum Swivel Exhaust Tip - Priced Each - Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet - Turner Motorsport - BMW MINI

Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Can be used on any 2.5" exhaust piping. Measure before ordering.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4658277
Mfg#:
049478LA03-04
In Stock
Auto Notify
ON SALE! SAVE 10%
$56.99

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

$51.29 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.

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.

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