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ECS & Stoptech E46 M3 Sweepstakes - Build List

With a high-strung S54 inline six under the hood, a manual 6-speed transmission, LSD rear end, and competent suspension, the E46 M3 is a great platform out of the box. That isn’t to say it can’t be improved, however, which is exactly what we did. Below, we’ve listed everything we upgraded on the M3 before it was delivered to the lucky new owner who is surely enjoying our tasteful upgrades provided by our partners that help bring out the full potential of this incredible machine.


Check out the build!

Fits:
E46 M3

E46 M3 B16 PSS10 Coilover System
Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty!
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Brand: Bilstein - Corporate Logo
ES#: 11158
Mfg#: 48-126687

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Availability:
In Stock
$2299.00 USD
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This product is lifetime replacement eligible Lifetime Replacement
E46 M3 Stage 1 Performance Clutch Kit - With Single Mass Flywheel
For moderately modified cars or performance oriented driving style
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Brand: DKM - Corporate Logo
ES#: 3220838
Mfg#: MA-006-054

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Availability:
In Stock at Vendor
$749.99 USD
This product is lifetime replacement eligible Lifetime Replacement
Full Supersprint Exhaust System - Race (63.5mm)
Full stainless steel exhaust system with sport cats and Race sound muffler for added power and aggressive sound!
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Brand: Supersprint - Corporate Logo
ES#: 3698274
Mfg#: 044001KT4

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Availability:
Ships on Sep 4, 2026
$9462.00 USD
Supersprint Stepped Section 1 Metallic Sport Cats (63.5mm)
Increase performance and maintain emissions
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Brand: Supersprint - Corporate Logo
ES#: 3033376
Mfg#: 044002

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Availability:
In Stock
Limited Qty Sale
$3200.40

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

$2864.99 USD
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Supersprint Section 2 Straight Pipes (60mm)
A more aggressive sound and increased power
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Brand: Supersprint - Corporate Logo
ES#: 3024760
Mfg#: 787513

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Availability:
Ships in 2 Business Days
$834.00 USD
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Center Exhaust Twin Pipe - Non-Resonated (63.5mm)
Increase the power potential of your BMW with these performance exhaust pipes from Supersprint!
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Brand: Supersprint - Corporate Logo
ES#: 3610297
Mfg#: 044013

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Availability:
Ships on Sep 4, 2026
$962.99 USD
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Supersprint Race Mufflers
Lightweight Racing design for maximum performance & sound
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Brand: Supersprint - Corporate Logo
ES#: 3033342
Mfg#: 044006

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Availability:
Ships on Sep 4, 2026
$2314.99 USD
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E46 M3 High Performance Aluminum Radiator
Ultra-efficient dual-core, triple-pass radiator from the leader in E46 M3 cooling. Cooler engine temps mean more power and longer life of engine components.
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Brand: CSF - Corporate Logo
ES#: 2992660
Mfg#: 7058

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Availability:
In Stock
$645.00 USD
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This product is lifetime replacement eligible Lifetime Replacement
Race-spec Dual-pass oil cooler
True plug-and-play! No modifications - just better performance. Lower engine temperatures mean more power and longer life of engine components.
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Brand: CSF - Corporate Logo
ES#: 2992675
Mfg#: 8032

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Availability:
In Stock
$549.00 USD
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This product is lifetime replacement eligible Lifetime Replacement
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.
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Brand: 034Motorsport - Corporate Logo
ES#: 3647385
Mfg#: 034-509-3646

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Availability:
In Stock
$276.00 USD
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This product is lifetime replacement eligible Lifetime Replacement
Carbon Fiber Roof Panel
Light weight roof panel replacement
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Brand: Karbonius Composites - Corporate Logo
ES#: 3469609
Mfg#: 0131T004

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Availability:
Ships in 2 Business Days
$2479.00 USD
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This product is lifetime replacement eligible Lifetime Replacement
Shark Injector V2.0 Performance Software
Removes top speed limiter, raises rev limit to 8,250rpm, improves throttle response, and improves power output - max gains of 22hp and 16tq!
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Brand: Shark Injector - Corporate Logo
ES#: 3604772
Mfg#: N4S54MV

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Availability:
Ships on Aug 11, 2026
On SALE Save 10%
Starting at $404.10 USD
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This product is lifetime replacement eligible Lifetime Replacement
Rear Adjustable Camber Arm Set - Street
With rubber bushing for comfort on the street with adjustability for street and track performance. Made in the USA!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3028370
Mfg#: TSU9940B77

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Availability:
In Stock
On SALE Save 10%
$499.99

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

$449.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
Turner Motorsport Front control arm Performance Kit
A more precise, smoother handling option with no negative feedback - with Lemforder Control Arms
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Brand: Turner Motorsport - Corporate Logo
ES#: 3426967
Mfg#: 013276TMS01A-03

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Availability:
In Stock
On SALE Save 11%
$1458.99

This product was last offered at the strikethrough price on
04-23-2026

$1299.12 USD
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This product is lifetime replacement eligible Lifetime Replacement
Complete Turner Motorsport Reinforcement Package - (NO LONGER AVAILABLE)
Add strength to your M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3028093
Mfg#: T46REINF-M3
No longer available
Turner Motorsport Front/Rear 30/25 Sway Bar Upgrade kit
Reduce body roll and understeering
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3022944
Mfg#: 33355TMS

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Availability:
In Stock
On SALE
$641.68

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

$622.43 USD
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This product is lifetime replacement eligible Lifetime Replacement
Turner Motorsport Custom Length Adjustable Front Sway Bar End Links (Pair)
Exactly what you need when lowering your vehicle to keep your suspension geometry happy
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Brand: Turner Motorsport - Corporate Logo
ES#: 3084710
Mfg#: TMS2104

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Availability:
In Stock
On SALE
Starting at $221.15 USD
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This product is lifetime replacement eligible Lifetime Replacement
E46 M3 Turner Motorsport Solid Aluminum Differential Race Mounts - Pre-Installed
An aggressive mount design for increased response and reduced drivetrain loss pre-installed for a direct bolt on install.
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Brand: Turner Motorsport - Corporate Logo
ES#: 3491410
Mfg#: TDR4680035-01

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Availability:
Ships on Dec 1, 2026
On SALE Save 20%
$529.23

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

$424.14 USD
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This product is lifetime replacement eligible Lifetime Replacement
Turner Motorsport Front Adjustable Camber/Caster Plates - Street polyurethane bushings
Featuring serviceable polyurethane bushings for no compromise to comfort.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3085610
Mfg#: TSU4680501

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Availability:
In Stock
On SALE
Starting at $629.84 USD
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This product is lifetime replacement eligible Lifetime Replacement
Turner Double Adjustable Short Shift Kit - E46 M3
Knob height and throw adjustable to fine tune your driving experience.
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Featuring Quick Change rally lever extensions!
Brand: Turner Motorsport - Corporate Logo
ES#: 3607842
Mfg#: 013264TMS07

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Availability:
Ships on Aug 4, 2026
On SALE Save 20%
Starting at $324.66 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Turner Motorsport Sealed Monoball Rear Trailing Arm Bushings (RTAB)
The ultimate rear trailing arm bushings for your street or track BMW. Permits full articulation without undesirable alignment changes.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3552810
Mfg#: 017738TMS02

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Availability:
In Stock
On SALE Save 28%
Limited Qty Sale
$367.99

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

$265.96 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 3603722
Mfg#: 024707TMS01

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Availability:
In Stock
On SALE Save 37%
Limited Qty Sale
$471.99

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

$296.30 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
E46 M3 Turner Carbon Fiber Diffuser
Add aggressive styling to your rear end with Turner In-House Engineered Carbon Fiber Rear Diffuser!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Turner Motorsport - Corporate Logo
ES#: 4005299
Mfg#: 028937TMS01

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Availability:
In Stock
On SALE Save 30%
Limited Qty Sale
$682.99

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

$478.00 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Complete Performance Polyurethane Differential Bushing Set
ECS engineered to improve power application and offer superior service life over factory rubber bushings
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 2748546
Mfg#: 002447ECS03KT

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Availability:
In Stock
On SALE Save 35%
$193.99

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

$126.09 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
WPC Performance Rod Bearing Replacement Kit
Includes everything needed for a rod bearing service, featuring WPC treated rod bearings.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Stronger & smoother, with less friction!
Brand: Assembled By ECS - Corporate Logo
ES#: 2992679
Mfg#: 11247835439KT2

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Availability:
In Stock
On SALE
$823.99

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

$790.04 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Partial Replacement
Liqui Moly Synthoil Race Tech GT1 Oil Change Kit / Inspection I
Everything needed for a complete oil service including Liqui Moly Race Tech GT1 oil and a Hengst filter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2960049
Mfg#: 11427833769LMKT

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Availability:
In Stock
On SALE
$97.99

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

$95.62 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Partial Replacement

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