Top Mods for your BMW E46 330!
ECS loves helping you make your car all it can be; that's why we've put all the top of the line performance parts for your E46 330 together in one place. This list, compiled by our own BMW gurus, is everything you need to outfit your car with all those goodies you've wanted for your build. Let's make race season even more fun with all the best performance parts for your E46 330!
Hand Selected By Our Team Of Enthusiast
For Your BMW:
E46 330i / 330Ci / 330xi M54 3.0L
BR Series Coilover Suspension Kit
Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors!
Brand:
ES#:
3509398
Mfg#:
I-02-BR
ECS Performance Adjustable Coilover System - E46 Non-M
Improve the Comfort, Performance, and Style of your E46!
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Brand:
ES#:
4000579
Mfg#:
029307ECS01
Bilstein B12 Pro-Kit Suspension System
Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty!
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Brand:
ES#:
2984025
Mfg#:
46-242792
E46 Front & Rear Adjustable Sway Bar Kit
Track tuned and street friendly handling upgrade! Featuring a larger 27mm, 2-way adjustable front bar and a 21mm, 3-way adjustable rear bar.
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3028264
Mfg#:
TMSSWAYE46
ECS Carbon Fiber Strut Bar Kit - Black
Reduce chassis flex with this lightweight strut bar
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Not compatible with coilovers that have adjustable dampening knobs on top.
Not compatible with coilovers that have adjustable dampening knobs on top.
Brand:
ES#:
10995
Mfg#:
ECSCF03BW03ACEB
ECS Tuning Performance Adjustable Rear Control Arm Set
Properly dial in rear camber. A must for all enthusiasts that care about handling and tire wear.
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Brand:
ES#:
2682175
Mfg#:
002608ECS01
Turner Motorsport Control Arm Monoball Upgrade with housings (FCAB)
The best front control arm bushing replacement option available for your E46! Precise, predicable, handling without the harshness commonly found in solid bushings. Greaseable and serviceable; offered pressed into brackets for fast installation!
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Brand:
ES#:
3450333
Mfg#:
020321TMS-03
M52TU/M54 Mechanical Thermostat Conversion
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Brand:
ES#:
4736485
Mfg#:
4709399PDKJ7JF30
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Availability:
Ships on Oct 29, 2026
Ships on Oct 29, 2026
E46 325/330 Mid Section & Integrated X-Pipe
Drop 10 lbs and replace your midpipes/resonator for a free flowing X-Pipe to get a smoother sound and decreased back pressure!
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10X Entries For Our Spin To Win Sweepstakes!
Brand:
ES#:
4661006
Mfg#:
023522LA02KT
High Performance Water Pump - With O-Ring
Stainless steel impeller and 20% increase in flow!
When it comes to cooling, Stewart is the final word in high performance pumps. The ultimate in BMW cooling with a limited lifetime warranty!
Brand:
ES#:
2581452
Mfg#:
888010330
E46 High Performance Aluminum Radiator
Lower engine temperatures mean more power and longer life of engine components!
2X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2992604
Mfg#:
3055
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!
For vehicles with a production date from 03/2003
Brand:
ES#:
3138997
Mfg#:
N745330
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: +4HP +7LB/FT gains!
For vehicles with a production date up to 02/2003
Brand:
ES#:
3138970
Mfg#:
N4MS4330
Sprint Booster Power Converter V3
Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes
Brand:
ES#:
3184663
Mfg#:
SBBM0003S
M54 Late Model High-Performance Ignition Service Kit
Everything needed for a performance ignition service including spark plugs and Turner ignition coils!
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Brand:
ES#:
4690388
Mfg#:
12131712219TKT1
E46 325/330 Performance Valved Cat-Back Exhaust
Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button.
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Brand:
ES#:
4659317
Mfg#:
023536LA02KT
Stage 1 Clutch And Flywheel Kit - FX100
Upgraded clutch plate with organic disc and light weight aluminum flywheel
For vehicles with 6 speed 22 Spline Transmission and Production Date From 03/2003
Brand:
ES#:
3622231
Mfg#:
03CM3-HD00-AK
FX250 Stage 2 Clutch and flywheel Kit
More holding power with a Rigid organic/fiber tough disc and light weight aluminum flywheel
Brand:
ES#:
3622192
Mfg#:
03CM1-HD0F-AK
Complete Performance Polyurethane Differential Bushing Set
ECS engineered to improve power application and offer superior service life over factory rubber bushings
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Brand:
ES#:
2748545
Mfg#:
002447ECS02KT
Rear Subframe/Chassis Reinforcement Kit - E46
Say goodbye to torn subframe mounting! The industry standard in weld-in E46 subframe reinforcement. Updated in 2020 to provide additional reinforcement!
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Brand:
ES#:
3006359
Mfg#:
TDR4675412
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Availability:
Back Ordered
Auto Notify
Back Ordered
Performance Ignition Service Kit
Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and Turner Performance Ignition Coils
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Brand:
ES#:
4758078
Mfg#:
7599219T1KT
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Availability:
Ships on Sep 15, 2026
Auto Notify
Ships on Sep 15, 2026
Helical Limited Slip Differential - Final Ratio 3.07 or Less
Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering.
For vehicles with a manual transmission
Brand:
ES#:
2795230
Mfg#:
MF-TRS-05E46
Aluminum Street Shield Skid Plate Kit - Milled Finish
Protect your vehicle's fragile oil pan and under carriage with this 1/8” (3.175mm) thick aluminum skid plate
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Brand:
ES#:
4271421
Mfg#:
004964LA01-01KT
Turner Motorsport ABS High Kick Rear Spoiler - E46 Coupe
Add aggressive styling to your BMW at an affordable price!
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Brand:
ES#:
4033291
Mfg#:
001271LA01
Turner Motorsport Carbon Fiber High Kick Rear Lip Spoiler
A beautiful high kick carbon spoiler that pays homage to CSL while flowing perfectly with E46 coupe body lines!
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Brand:
ES#:
3603722
Mfg#:
024707TMS01
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Availability:
In Stock
In Stock
Blackout Grille Set - Matte Black
Add style and individuality to your E46 in minutes!
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Brand:
ES#:
1892395
Mfg#:
BM01-4602-B
2-Piece Lightweight Front Brake Rotors - Pair (325x25)
Direct bolt-on cross-drilled and slotted replacement offering a 4lbs weight savings per rotor! Better handling, better acceleration, and better braking!
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Brand:
ES#:
2739176
Mfg#:
003295ECS01KT
Exact-Fit Stainless Steel Brake Lines - Complete Kit
DOT-compliant kit to improve pedal feel in your vehicle.
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
252665
Mfg#:
E46EXKIT
Z26 Street Warrior Brake Kit - Front and Rear
Includes performance drilled and slotted rotors and Power Stop's Extreme Carbon-Fiber Ceramic pads.
Brand:
ES#:
3477760
Mfg#:
K5728-26