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 Clear

BMW E46 323Ci M52 2.5L

    • 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 BMW E46 323Ci M52 2.5L
Your Vehicle BMW E46 323Ci M52 2.5L
Change Clear

BMW E46 323Ci M52 2.5L Performance Engine Parts

Sort By
Filter By
Return to Top

Boost Cooler Stage 3 DI ProLine Water/Methanol Injection

ES#4698806 - SP10317PRO - Boost Cooler Stage 3 DI ProLine Water/Methanol Injection - Proven to reduce the air inlet temperature by up to 100 degrees and increase octane by 25points for maximum HP and cooling! 3-liter reservoir, stainless steel braided line, 4AN fittings. - SnowPerformance - Audi BMW Volkswagen MINI

Proven to reduce the air inlet temperature by up to 100 degrees and increase octane by 25points for maximum HP and cooling! 3-liter reservoir, stainless steel braided line, 4AN fittings.

Brand:
SnowPerformance - Corporate Logo
ES#:
4698806
Mfg#:
SP10317PRO
In Stock at Vendor
$833.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Baffled Oil Catch Can Mounting Bracket Kit - Universal Fit

ES#2918376 - 003779ECS06KT - ECS Tuning Baffled Oil Catch Can Mounting Bracket Kit - Universal Fit - Universal 3-piece mounting bracket kit for installing a new ECS Oil Catch Can - ECS - Audi BMW Volkswagen MINI

Universal 3-piece mounting bracket kit for installing a new ECS Oil Catch Can 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2918376
Mfg#:
003779ECS06KT
In Stock
ON SALE! SAVE 25%
$95.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Polyurethane Engine Mounts

ES#3546790 - 003293TMS02 - Turner Motorsport Polyurethane Engine Mounts - Performance street & track engine mounts to increase drivetrain rigidity - Turner Motorsport - BMW

Performance street & track engine mounts to increase drivetrain rigidity 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3546790
Mfg#:
003293TMS02
In Stock
ON SALE!
Starting at $423.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Performance Transmission Mount Set

ES#3143399 - 034-509-4050-SD - Density Line Performance Transmission Mount Set - Increase performance and durability without sacrificing comfort - an ECS Tuning exclusive! - 034Motorsport - BMW

Increase performance and durability without sacrificing comfort - an ECS Tuning exclusive! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3143399
Mfg#:
034-509-4050-SD
In Stock
$66.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 323/328 Valved Cat-Back Exhaust

ES#5395764 - 039116LA01 - E46 323/328 Valved Cat-Back Exhaust - Turn up the sound or keep it stealth. This lightweight E46 performance exhaust lets you control the tone instantly with its valved muffler and one-click controller. - Turner Motorsport - BMW

Turn up the sound or keep it stealth. This lightweight E46 performance exhaust lets you control the tone instantly with its valved muffler and one-click controller. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
5395764
Mfg#:
039116LA01
In Stock
ON SALE!
Starting at $874.32 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Double Wall Slash Cut Exhaust Tip - 2.5 Inlet - 3.0 OD - Stepped Left - Brushed Stainless

ES#4146851 - 026732TMS06-01 - Turner Motorsport Double Wall Slash Cut Exhaust Tip - 2.5 Inlet - 3.0 OD - Stepped Left - Brushed Stainless - Left - Brushed Stainless Slash Cut Exhaust Tip - 2.5 Inlet - 3.0 OD - Turner Motorsport - BMW MINI

Left - Brushed Stainless Slash Cut Exhaust Tip - 2.5 Inlet - 3.0 OD 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4146851
Mfg#:
026732TMS06-01
In Stock
ON SALE! SAVE 10%
$128.99

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

$116.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Double Wall Slash Cut Exhaust Tip - 2.75 Inlet - 3.5 OD - Stepped Left - Titanium Black Chrome

ES#4146846 - 026732TMS03-10 - Turner Motorsport Double Wall Slash Cut Exhaust Tip - 2.75 Inlet - 3.5 OD - Stepped Left - Titanium Black Chrome - Left - Titanium Black Chrome Slash Cut Exhaust Tip - 2.75 Inlet - 3.5 OD - Turner Motorsport - BMW MINI

Left - Titanium Black Chrome Slash Cut Exhaust Tip - 2.75 Inlet - 3.5 OD 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4146846
Mfg#:
026732TMS03-10
In Stock
ON SALE! SAVE 10%
$139.99

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

$125.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

-10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each

ES#3187875 - 003779ECS10 - -10AN ORB X 3/4" Hose Barb Fitting Assembly - Priced Each - Universal fitting for ECS Tuning Catch can to use a 3/4" Hose - ECS - Audi BMW Volkswagen MINI

Universal fitting for ECS Tuning Catch can to use a 3/4" Hose 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3187875
Mfg#:
003779ECS10
In Stock
ON SALE! SAVE 25%
$39.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Injen X-Pedal Pro Black Edition Throttle Controller - BMW

ES#4304635 - PT0008B - Injen X-Pedal Pro Black Edition Throttle Controller - BMW - Tune out the delayed throttle response from the factory with Injens X-Pedal Pro Black Edition and revamp your driving experience! - Injen - BMW MINI

Tune out the delayed throttle response from the factory with Injen’s X-Pedal Pro Black Edition and revamp your driving experience!

Brand:
Injen - Corporate Logo
ES#:
4304635
Mfg#:
PT0008B
In Stock at Vendor
$263.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.5" Brushed Aluminum Swivel Exhaust Tips - Set of 4

ES#4715562 - 049478la03-04KT1 - 3.5" Brushed Aluminum Swivel Exhaust Tips - Set of 4 - 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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4715562
Mfg#:
049478LA03-04KT1
In Stock
ON SALE! SAVE 10%
$227.96

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

$205.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Solid Rubber Engine And Trans Mount Set

ES#3647385 - 034-509-3646 - 034Motorsport Solid Rubber Engine And Trans Mount Set - Increase performance and durability without sacrificing comfort. True rubber mounts - a positive upgrade over cushy, factory-installed fluid-filled mounts. - 034Motorsport - BMW

Increase performance and durability without sacrificing comfort. True rubber mounts - a positive upgrade over cushy, factory-installed fluid-filled mounts. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3647385
Mfg#:
034-509-3646
In Stock
$276.00 USD
Free Shipping
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.

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