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 E34 Performance Engine Parts

Sort By
Filter By
Return to Top

Port Injection Plugs

ES#4690214 - PRINJPLGS - Port Injection Plugs - Use these in replacement of any standard short body EV14 style injector. - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Use these in replacement of any standard short body EV14 style injector.

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690214
Mfg#:
PRINJPLGS
Ships in 9 Business Days
Starting at $9.99 USD
Customize
Free Shipping
on orders $49 and up

E32/34 Radiator Stays

ES#4045682 - E34RS-1 - E32/34 Radiator Stays - Upgrade those plastic factory radiator stays to prevent failure. - Reboot Engineering - BMW

Upgrade those plastic factory radiator stays to prevent failure.

Brand:
Reboot Engineering - Corporate Logo
ES#:
4045682
Mfg#:
E34RS-1
In Stock
ON SALE!
$54.99

This product was last offered at the strikethrough price on
05-14-2026

$52.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Air Filter 33-2078

ES#260834 - 13721726916 - Engine Air Filter 33-2078 - Drop in performance air filter - K&N - BMW

Drop in performance air filter

Brand:
K&N - Corporate Logo
ES#:
260834
Mfg#:
13721726916
Special Order: No Guaranteed ETA
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6)

ES#4736132 - VS-VW7E-6 - VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6) - The perfect seal for repairing, replacing, or upgrading your valves and stem seals! - Supertech - BMW Volkswagen

The perfect seal for repairing, replacing, or upgrading your valves and stem seals!

Brand:
Supertech - Corporate Logo
ES#:
4736132
Mfg#:
VS-VW7E-6
Ships in 5 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Hose - 20'

ES#4715254 - BMS-WMI-IL - Water/Methanol Injection Hose - 20' - Replacement WMI Water Injection Hose - Burger Motorsports - Audi BMW Volkswagen MINI

Replacement WMI Water Injection Hose

Brand:
Burger Motorsports - Corporate Logo
ES#:
4715254
Mfg#:
BMS-WMI-IL
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heat Shroud™ - Aluminized Sleeving

ES#2784360 - 010405 - Heat Shroud™ - Aluminized Sleeving - 1" X 3ft - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

1" X 3ft

Brand:
DEI - Corporate Logo
ES#:
2784360
Mfg#:
010405
Ships on Oct 5, 2026
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pro 5R Oiled Air Filter

ES#518729 - 30-10047 - Pro 5R Oiled Air Filter - Higher flow, higher performance - washable and reuseable! - AFE - BMW

Higher flow, higher performance - washable and reuseable!

Brand:
AFE - Corporate Logo
ES#:
518729
Mfg#:
30-10047
Ships in 3 Business Days
ON SALE! SAVE 15%
$71.00

This product was last offered at the strikethrough price on
09-01-2026

$60.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8" Stainless Steel Locking Ties - Pack Of 9

ES#261432 - 010201 - 8" Stainless Steel Locking Ties - Pack Of 9 - Secure the exhaust wrap with stainless steel ties - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Secure the exhaust wrap with stainless steel ties

Brand:
DEI - Corporate Logo
ES#:
261432
Mfg#:
010201
Ships on Oct 5, 2026
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

4AN "T" Fitting

ES#4212780 - SN0-806-BRD - 4AN "T" Fitting - 4AN T - SnowPerformance - Audi BMW Volkswagen MINI

4AN T

Brand:
SnowPerformance - Corporate Logo
ES#:
4212780
Mfg#:
SN0-806-BRD
In Stock at Vendor
$10.99 USD
Free Shipping
on orders $49 and up

Super Atomizing Water/Methanol Injection Nozzles

ES#4714568 - BMS.SA.WMI.NOZ - Super Atomizing Water/Methanol Injection Nozzles - With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs! - Burger Motorsports - Audi BMW Volkswagen MINI Porsche

With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs!

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714568
Mfg#:
BMS.SA.WMI.NOZ
Ships on Oct 12, 2026
Starting at $40.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Nozzle Holder Straight (Rectangle Style)

ES#4642625 - SN0-900 - Nozzle Holder Straight (Rectangle Style) - Stylish nozzle holders for your WMI setup - SnowPerformance - Audi BMW Volkswagen MINI Porsche

Stylish nozzle holders for your WMI setup

Brand:
SnowPerformance - Corporate Logo
ES#:
4642625
Mfg#:
SN0-900
Ships in 1 Business Day
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fiberglass Exhaust Wrap - White - 2" x 50'

ES#3022266 - HEA-WRAPKIT-WHT - Fiberglass Exhaust Wrap - White - 2" x 50' - Designed to handle continuous temperatures up to 1,200F - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Designed to handle continuous temperatures up to 1,200°F

Brand:
Prosport Performance - Corporate Logo
ES#:
3022266
Mfg#:
HEA-WRAPKIT-WHT
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Nozzle - 2.5GPH

ES#4476204 - SN0-N0250 - Water/Methanol Nozzle - 2.5GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle

Brand:
SnowPerformance - Corporate Logo
ES#:
4476204
Mfg#:
SN0-N0250
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JB4 OBDII Cable - With JB4 side Repair Harness

ES#4714892 - JB4-OBDII-CA-MC - JB4 OBDII Cable - With JB4 side Repair Harness - Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail. - Burger Motorsports - Audi BMW Volkswagen MINI

Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail.

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714892
Mfg#:
JB4-OBDII-CA-MC
Ships on Sep 29, 2026
$30.00 USD
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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings