No purchase necessary. See official rules.
No purchase necessary. See official rules.

ECS Project - Audi B9 S4 Build List

Nothing says classy and fun like the S4, especially the B9 S4 featuring the new turbocharged 3.0 V6 and lightning-quick transmission. Our B9 S4 sports some elegant and tasteful additions developed right here in-house for this platform to help demonstrate just how incredible you can make this car without much effort. From visual improvements to suspension, engine performance, brakes, and more, our B9 S4 build list is your road map to upgrading your S4 with some of the best parts in the scene.


A true build list inspiration

Fits:
Audi B9 S4

Front 2-Piece Brake Rotors - Pair (350x34)
Direct bolt-on replacement - 16% less weight!
Brand: ECS - Corporate Logo
ES#: 3493799
Mfg#: 023938ECS01KT

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Availability:
In Stock
On SALE Save 10%
$799.95 $719.96
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Rear 2-Piece Brake Rotors - Pair (330x22)
Direct bolt-on replacement - 15% less weight!
Brand: ECS - Corporate Logo
ES#: 3493800
Mfg#: 023944ECS01KT

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Availability:
In Stock
On SALE
$524.95 $498.70
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Rear 2-Piece Wave Brake Rotors - Pair (330x22)
Direct bolt-on upgrade to Tru-Float wave style rotors. 20% less weight!
Brand: ECS - Corporate Logo
ES#: 3520785
Mfg#: 023950ECS01KT

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Availability:
In Stock
$806.95
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Complete Drivetrain Mount Insert Kit
Decrease slop and increase drivetrain rigidity and response!
Brand: ECS - Corporate Logo
ES#: 3194637
Mfg#: 019208ECS01KT1

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Availability:
In Stock
On SALE Save 20%
$182.95 $146.36
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B9 A4/S4 Carbon Fiber Inlet Scoop
Channel air to your intake with performance syle!
Brand: ECS - Corporate Logo
ES#: 3537354
Mfg#: 024641ECS02KT

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Availability:
In Stock
On SALE Save 15%
$205.95 $175.06
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B9 A4/S4 Carbon Fiber Intake Box Overlay
Performance appearance without removing your factory air box!
Brand: ECS - Corporate Logo
ES#: 3447943
Mfg#: 024640ECS01

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Availability:
In Stock
On SALE Save 35%
$147.95 $96.82
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Carbon Fiber ECU Cover
Compliment your engine bay and hide away the exposed ECU
Brand: ECS - Corporate Logo
ES#: 3247906
Mfg#: 024249ECS01

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Availability:
In Stock
On SALE Save 20%
$153.95 $123.16
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Audi B9 A4/S4/A5 Engine Street Shield Aluminum Skid Plate
Protect your vehicle's plastic oil pan with this 4mm thick aluminum skid plate
Brand: ECS - Corporate Logo
ES#: 3411957
Mfg#: 019207ECS01KT

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Availability:
In Stock
On SALE
$296.95 $282.10
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Luft-Technik Intake Air Scoop
Extends farther down behind the grille to direct more air to the intake system
Brand: ECS - Corporate Logo
ES#: 3183334
Mfg#: 019848ECS01

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Availability:
In Stock
On SALE
$98.95 $94.00
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Silicone Turbo Inlet Hose
Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability!
Brand: ECS - Corporate Logo
ES#: 3420204
Mfg#: 024360ECS01

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Availability:
In Stock
On SALE Save 35%
$71.95 $46.77
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ECS Tuning Billet Engine Oil Dipstick - Black Anodized
A beautiful addition and durable upgrade for your engine
Brand: ECS - Corporate Logo
ES#: 3545565
Mfg#: 023954ECS01-02

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Availability:
Ships by ETA Dec 23, 2021
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On SALE Save 30%
$74.95 $52.47
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on orders $49 and up
ECS Tuning Billet Engine Oil Dipstick - Polished
A beautiful addition and durable upgrade for your engine
Brand: ECS - Corporate Logo
ES#: 3545564
Mfg#: 023954ECS01-01

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Availability:
Ships by May 31, 2022
On SALE Save 30%
$74.95 $52.47
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on orders $49 and up
Carbon Fiber Front Lip Overlay
Add a subtle touch of carbon fiber to your B9 A4/S4 front bumper
Brand: ECS - Corporate Logo
ES#: 3220704
Mfg#: 022539ECS01

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Availability:
In Stock
On SALE Save 15%
$184.95 $157.21
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Carbon Fiber Front Lip Spoiler
Hand-laid carbon fiber to upgrade your exterior styling
Brand: ECS - Corporate Logo
ES#: 3146390
Mfg#: 019196ECS01A

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Availability:
In Stock
On SALE Save 15%
$674.95 $573.71
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Carbon Fiber Grille Accent Set
Hand-laid carbon fiber to upgrade your exterior styling
Brand: ECS - Corporate Logo
ES#: 3420220
Mfg#: 024314ECS01

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Availability:
In Stock
On SALE Save 35%
$454.95 $295.45
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Front Bumper Reflector Film Set - Gunsmoke
Pre-cut Lamin-X film to cover both orange reflectors on the front bumper cover
Fits pre-facelift models only - Through the 2018 model year
Brand: ECS - Corporate Logo
ES#: 3141518
Mfg#: 020232ECS01

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Availability:
Ships by ETA Dec 16, 2021
On SALE Save 35%
$32.95 $21.42
Billet Hood Latch Release Handle
Billet aluminum hood release handle replacement for the plastic OEM hood pull
Brand: ECS - Corporate Logo
ES#: 3195650
Mfg#: 019386ECS01

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Availability:
In Stock
On SALE Save 32%
$65.95 $44.59
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on orders $49 and up
Carbon Fiber Side Blade Set
Add a touch of style made with real carbon fiber to your Audi
Brand: ECS - Corporate Logo
ES#: 3195012
Mfg#: 019189ECS01KT

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Availability:
Ships by ETA Jan 28, 2022
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On SALE Save 10%
$763.40 $687.06
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Carbon Fiber Trunk Spoiler
Add a touch of style and real carbon fiber to your Audi
Brand: ECS - Corporate Logo
ES#: 3141741
Mfg#: 019220ECS01A

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Availability:
In Stock
On SALE Save 15%
$534.95 $454.71
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Carbon Fiber Center Console Overlay
Add a touch of carbon fiber to your interior center console
Brand: ECS - Corporate Logo
ES#: 3493077
Mfg#: 022566ECS01KT

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Availability:
In Stock
On SALE Save 15%
$161.95 $137.66
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Carbon Fiber Dashboard Overlay Set
Add a touch of carbon fiber to your interior dash
Fits 7" MMI screen only
Brand: ECS - Corporate Logo
ES#: 3191341
Mfg#: 022565ECS01

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Availability:
In Stock
On SALE Save 25%
$139.95 $104.96
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Adjustable Front Sway Bar End Link Set
Attaches sway bar to control arm, adjustable to increase clearance between sway bar and axles. Offers just under 2" of adjustability!
Brand: ECS - Corporate Logo
ES#: 3176605
Mfg#: 003112ECS01

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Availability:
In Stock
On SALE Save 30%
$143.95 $100.76
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Billet Aluminum Front Strut Brace
Provides additional support to the strut towers for flex reduction to enhance your driving experience
Brand: ECS - Corporate Logo
ES#: 3188267
Mfg#: 019218ECS01

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Availability:
In Stock
On SALE
$296.95 $288.04
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20" RFX7 Wheels - Set Of Four
20"x10", ET33, CB66.6, 5x112 - Brushed Aluminum
Brand: Rohana Wheels - Corporate Logo
ES#: 3410607
Mfg#: FX720105112BTKT

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Availability:
Direct Ship, Expected Ship Date: Dec 15, 2021
$1940.00
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20" RFX10 Wheels - Set Of Four
20"x10", ET33, CB66.6, 5x112 - Brushed Titanium
Brand: Rohana Wheels - Corporate Logo
ES#: 3410413
Mfg#: RFX1020105112BKT

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Availability:
Direct Ship, Expected Ship Date: Dec 15, 2021
$1940.00
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P3Cars Vent Integrated Multi-Gauge - Without Vent
Powerful plug-and-play multifunction display with OEM integration and color matching
Fits left hand drive models only
Brand: P3 Gauges - Corporate Logo
ES#: 3420235
Mfg#: LVP3AB9X

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Availability:
Direct Ship, Expected Ship Date: Dec 10, 2021
$389.00
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Street Performance Coilover System
Finally, A performance coilover suspension system for your B9 Audi - Offering unrivaled comfort and performance!
Brand: H&R - Corporate Logo
ES#: 3221084
Mfg#: 50356-2

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Availability:
Ships by ETA Dec 29, 2021
Auto Notify
$1255.95
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Street Performance Coilover System
Finally, A performance coilover suspension system for your B9 Audi - Offering unrivaled comfort and performance!
Brand: H&R - Corporate Logo
ES#: 3187951
Mfg#: 50356

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Availability:
Direct Ship, Expected Ship Date: Dec 15, 2021
21% off MSRP $1580.00 $1249.95
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Carbon Fiber Mirror Cap Set
Upgrade your exterior look
Brand: ECS - Corporate Logo
ES#: 3411933
Mfg#: 024564ECS02

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Availability:
In Stock
On SALE Save 35%
$346.95 $225.52
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Manufacturer names and/or part numbers are used only for identification purposes.

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