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

ECS Project - Audi B9 A4 Build List

The B9 A4 has yet to achieve the same prolific acceptance it's predecessor did, but it's still got plenty of time to grow on enthusiasts as the market continues to develop. Speaking of, our ECS project B9 A4 features tons of our in-house developed performance and visual upgrades that help draw out the hidden power from the platform. If you want to transform your B9 A4, everything we've done to ours can be found right here so you can make the same choice upgrades and enjoy this luxury sedan to its fullest potential.


A true build list inspiration

Fits:
Audi B9 A4

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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Carbon Fiber Engine Cover Overlay
Add a touch of carbon fiber to your stock engine cover!
Brand: ECS - Corporate Logo
ES#: 3426555
Mfg#: 022526ECS01KT

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Availability:
In Stock
On SALE Save 15%
$148.95 $126.61
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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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Carbon Fiber ECU Cover
Compliment your engine bay and hide away the exposed ECU
Brand: ECS - Corporate Logo
ES#: 3136956
Mfg#: 019468ECS01A

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Availability:
Ships by ETA Jan 31, 2022
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On SALE Save 15%
$157.95 $134.26
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Performance Baffled Oil Catch Can System
Keep your intake tract clean and carbon free
Brand: ECS - Corporate Logo
ES#: 3194688
Mfg#: 019205ECS01KT

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Availability:
Ships by ETA Jan 6, 2022
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On SALE Save 10%
$417.95 $376.15
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Billet Aluminum Oil Filter Housing - Black Anodized
Ditch the easily broken/stripped plastic oil filter housing for a durable billet upgrade
Brand: ECS - Corporate Logo
ES#: 3106648
Mfg#: 005887ECS01KT

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Availability:
In Stock
On SALE Save 15%
$94.95 $80.71
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Billet Aluminum Oil Filter Housing - Silver Anodized
Ditch the easily broken/stripped plastic oil filter housing for a durable billet upgrade
Brand: ECS - Corporate Logo
ES#: 3106649
Mfg#: 005887ECS02KT

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Availability:
In Stock
On SALE Save 15%
$94.95 $80.71
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Billet Aluminum Oil Filter Housing - Polished
Ditch the easily broken/stripped plastic oil filter housing for a durable billet upgrade
Brand: ECS - Corporate Logo
ES#: 3106650
Mfg#: 005887ECS03KT

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Availability:
In Stock
On SALE Save 10%
$94.95 $85.46
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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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(2017+) B9 A4/A5 2.0T Kohlefaser Luft-Technik Intake System
Engineered for dyno proven performance and show quality looks!
Brand: ECS - Corporate Logo
ES#: 3143733
Mfg#: 019183ECS01

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Availability:
In Stock
On SALE
$673.95 $640.25
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Kohlefaser Luft-Technik Intake System Reflect-A-Gold Kit
Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System
Brand: ECS - Corporate Logo
ES#: 3221001
Mfg#: 020870ECS01KT

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Availability:
In Stock
On SALE Save 30%
$31.95 $22.37
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on orders $49 and up
This product has been superseded to ES#4017429
Silicone Turbo Inlet Hose - (NO LONGER AVAILABLE)
Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability!
Brand: ECS - Corporate Logo
ES#: 3176611
Mfg#: 019216ECS01
No longer available
Turbo Muffler Delete Pipe
Replace the factory turbo muffler with a straight through billet aluminum delete pipe kit -- SS to ES3999162
Brand: ECS - Corporate Logo
ES#: 3162698
Mfg#: 019330ECS01
No longer available
Billet Engine oil Dipstick - black Anodized
A more durable and aesthetically pleasing addition to your engine bay
Brand: ECS - Corporate Logo
ES#: 3138259
Mfg#: 018641ECS02-02

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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
Billet Engine Oil Dipstick - Polished
A more durable and aesthetically pleasing addition to your engine bay
Brand: ECS - Corporate Logo
ES#: 3138261
Mfg#: 018641ECS02-01

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Availability:
Ships by May 31, 2022
On SALE Save 30%
$74.95 $52.47
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B9 T304 Stainless Steel 3.0" Downpipe
Let your engine breathe with the ECS 3.0" downpipe and front resonator delete!
Brand: ECS - Corporate Logo
ES#: 3241024
Mfg#: 021616ECS01
No longer available
B9 A4/A5 4" Direct-Fit Exhaust Tips - Black Chrome - Pair
A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary
Brand: ECS - Corporate Logo
ES#: 3476949
Mfg#: 019490ECS01KT

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Availability:
In Stock
On SALE Save 10%
$167.95 $151.16
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B9 A4/A5 4" Direct-Fit Exhaust Tips - Chrome - Pair
A pair of direct-fit exhaust tips for the B9 A4/A5. No modifications necessary
Brand: ECS - Corporate Logo
ES#: 3476950
Mfg#: 019490ECS02KT

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Availability:
In Stock
On SALE Save 25%
$157.95 $119.00
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Complete Carbon Fiber Exterior Package
Revamp your B9 A4 S-Line with a complete hand-laid carbon fiber kit
Brand: ECS - Corporate Logo
ES#: 3236268
Mfg#: 019196ECS01KT

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Availability:
Ships by ETA Jan 28, 2022
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On SALE Save 10%
$2913.95 $2622.56
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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#: 3195023
Mfg#: 019511ECS01KT

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Availability:
In Stock
On SALE Save 10%
$473.90 $426.51
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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 Rear Diffuser
Hand-laid carbon fiber to upgrade your exterior styling
Brand: ECS - Corporate Logo
ES#: 3145741
Mfg#: 019193ECS01A

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Availability:
In Stock
On SALE Save 33%
$827.95 $554.07
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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 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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Carbon Fiber Steering Wheel Trim
Add a touch of carbon fiber to your interior
Will not work with flat bottom steering wheels
Brand: ECS - Corporate Logo
ES#: 3220888
Mfg#: 019513ECS01A

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Availability:
Ships by ETA Dec 16, 2021
On SALE Save 15%
$69.95 $59.46
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