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BMW E46 325Ci M54 2.5L

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BMW E46 325Ci M54 2.5L Performance Engine Parts

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4.0" Universal Black Chrome Swivel Exhaust Tip

ES#4821158 - 049478LA01-02 - 4.0" Universal Black Chrome Swivel Exhaust Tip - Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 4.0" 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 4.0" Double Wall, Angle Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Can be used on any 2.5" exhaust piping. Measure before ordering.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4821158
Mfg#:
049478LA01-02
In Stock
Limited Qty Sale
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shark Injector Performance Software

ES#3138969 - N4MS4325 - Shark Injector Performance Software - Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +7HP +7LB/FT gains! - Shark Injector - BMW

Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +7HP +7LB/FT gains! For vehicles with a production date up to 02/2003

Brand:
Shark Injector - Corporate Logo
ES#:
3138969
Mfg#:
N4MS4325
In Stock
ON SALE! SAVE 10%
$349.00

This product was last offered at the strikethrough price on
05-02-2026

$314.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Shark Injector Performance Software

ES#3138996 - N745325 - Shark Injector Performance Software - Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +7HP +7LB/FT gains! - Shark Injector - BMW

Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +7HP +7LB/FT gains! For vehicles with a production date from 03/2003

Brand:
Shark Injector - Corporate Logo
ES#:
3138996
Mfg#:
N745325
In Stock
ON SALE! SAVE 10%
$349.00

This product was last offered at the strikethrough price on
05-02-2026

$314.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.5" Black Chrome Swivel Exhaust Tips - Set of 4

ES#4901434 - 049478LA03-02KT1 - 3.5" Black Chrome 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#:
4901434
Mfg#:
049478LA03-02KT1
In Stock
ON SALE! SAVE 10%
$279.99

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

$251.96 USD
Free Shipping
on orders $49 and up
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

Brand:
AEM Electronics - Corporate Logo
ES#:
4500516
Mfg#:
30-3326
In Stock at Vendor
11% off MSRP

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

$149.99

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

$132.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Titanium Exhaust Wrap - 2" x 50

ES#3022269 - HEA-WRAPKIT-50 - Titanium Exhaust Wrap - 2" x 50 - Designed to handle continuous temperatures up to 1,800F - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Designed to handle continuous temperatures up to 1,800°F

Brand:
Prosport Performance - Corporate Logo
ES#:
3022269
Mfg#:
HEA-WRAPKIT-50
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Upgrade

ES#5507087 - E46NMPCKT - Performance Cooling System Upgrade - Upgrade your BMW's cooling to extend track days and keep your engine healthy - Assembled By ECS - BMW

Upgrade your BMW's cooling to extend track days and keep your engine healthy 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a Manual Transmission and production date up to 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
5507087
Mfg#:
E46NMPCKT
Ships on Oct 16, 2026
Auto Notify
ON SALE!
$1432.99

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

$1400.17 USD
This product is lifetime replacement eligible Partial Replacement

Cat Back Exhaust

ES#2102408 - 16748 - Cat Back Exhaust - 2.5" stainless steel with dual 3" polished stainless tips - Magnaflow - BMW

2.5" stainless steel with dual 3" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
2102408
Mfg#:
16748
Ships in 1 Business Day
$1396.00 USD
This product is lifetime replacement eligible Lifetime Replacement

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

ES#4146865 - 026732TMS06-02 - Turner Motorsport Double Wall Slash Cut Exhaust Tip - 2.5 Inlet 3.0 OD - Stepped Right - Brushed Stainless - Right - Brushed Stainless Slash Cut Exhaust Tip - 2.5 Inlet - 3.0 OD - Turner Motorsport - BMW MINI

Right - 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#:
4146865
Mfg#:
026732TMS06-02
In Stock
ON SALE! SAVE 26%
$125.99

This product was last offered at the strikethrough price on
05-02-2026

$92.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mach Force XP Cat Back Exhaust System

ES#2574631 - 4946309 - Mach Force XP Cat Back Exhaust System - Bolt on performance plus great looks for your vehicle - AFE - BMW

Bolt on performance plus great looks for your vehicle

Brand:
AFE - Corporate Logo
ES#:
2574631
Mfg#:
4946309
Ships in 3 Business Days
ON SALE! SAVE 10%
$1532.00

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

$1378.80 USD
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Valved Catback Exhaust & ECS Luft-Technik Intake System - E46 330i/Ci

ES#4876695 - 023536LA02EB2KT - Turner Motorsport Valved Catback Exhaust & ECS Luft-Technik Intake System - E46 330i/Ci - The ULTIMATE auditory upgrade - featuring a valved muffler for sound control and a free-flowing intake for increased performance. - Enthusiast Bundles - BMW

The ULTIMATE auditory upgrade - featuring a valved muffler for sound control and a free-flowing intake for increased performance. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876695
Mfg#:
023536LA02EB2KT
Back Ordered
ON SALE! SAVE 16%
$1627.98

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

$1369.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Aluminum Solid Transmission Mounts

ES#3438526 - 017730TMS03 - Turner Motorsport Aluminum Solid Transmission Mounts - Designed for track use to eliminate deflection and drive line slop - Turner Motorsport - BMW

Designed for track use to eliminate deflection and drive line slop 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3438526
Mfg#:
017730TMS03
In Stock
ON SALE! SAVE 27%
$113.99

This product was last offered at the strikethrough price on
05-02-2026

$82.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VC-30 Water Methanol Controller (Boost)

ES#4623922 - SN0-60400 - VC-30 Water Methanol Controller (Boost) - Proportionally injects more or less water/methanol according to boost pressure - SnowPerformance - Audi BMW Volkswagen MINI

Proportionally injects more or less water/methanol according to boost pressure

Brand:
SnowPerformance - Corporate Logo
ES#:
4623922
Mfg#:
SN0-60400
In Stock at Vendor
$184.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

4" Universal Exhaust Tip w/ Brushed Finish - Priced Each

ES#4039315 - 026374TMS02-10 - 4" Universal Exhaust Tip w/ Brushed Finish - Priced Each - Stainless Steel exhaust tip featuring a 2.5" Inlet & a 4.0" Double Wall, Angle Cut Outlet - Turner Motorsport - BMW MINI

Stainless Steel exhaust tip featuring a 2.5" Inlet & a 4.0" Double Wall, Angle Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4039315
Mfg#:
026374TMS02-10
In Stock
ON SALE! SAVE 20%
$63.99

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

$51.19 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.

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