Top Mods for your Audi B9 A4
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 AUDI B9 A4 together in one place. This list, compiled by our own AUDI 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 Audi B9 A4!
Hand Selected By Our Team Of Enthusiast
For Your
Audi B9 A4 2.0T
B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers
Features 32 way adjustable damping, variable length and zinc-coated shock bodies
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Models with Dynamic Chassis Control (DCC) will require DCC Cancelers
Models with Dynamic Chassis Control (DCC) will require DCC Cancelers
Brand:
ES#:
4474122
Mfg#:
000745LA01
Street Performance Coilover System
Finally, A performance coilover suspension system for your B9 Audi - Offering unrivaled comfort and performance!
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We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3187951
Mfg#:
50356
Dynamic+ Performance Lowering Springs
Engineered to improve handling and deliver superb ride quality!
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Brand:
ES#:
3209930
Mfg#:
034-404-1001
Performance Cold Air Intake System
Add power, performance, and style to your B9 A4/A5 2.0T engine!
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Brand:
ES#:
3245919
Mfg#:
IEINCK1
Luft-Technik B9 A4 Intercooler And Charge Pipe Kit
Full kit to upgrade your charge pipes and FMIC
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Brand:
ES#:
3557444
Mfg#:
019219ECS01AKT2
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Availability:
Ships on Sep 23, 2026
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Ships on Sep 23, 2026
FDS Front-Mount Intercooler Kit - Silver
Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods!
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Brand:
ES#:
3470702
Mfg#:
IETPCK1
High Flow Aluminum Charge Pipe Set
2.5" mandrel-bent aluminum turbo outlet and throttle pipe to replace your restrictive factory pieces
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Brand:
ES#:
4003757
Mfg#:
CTS-IT-291
High Flow Charge Pipe Kit
Increase intake air flow with our high flow charge pipes for your OEM intercooler!
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Brand:
ES#:
3557326
Mfg#:
021469ECS01AKT
Silicone Turbo Inlet Hose
Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability!
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Brand:
ES#:
4017429
Mfg#:
019216ECS02
Turbo Muffler Delete Pipe
Replace the factory turbo muffler with a straight through billet aluminum delete pipe kit
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Brand:
ES#:
3999162
Mfg#:
019330ECS01KT
DV+ Performance Diverter Valve T9351
Direct-fit performance solution for the OE diverter valve
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CARB certified for sale in all 50 states
CARB certified for sale in all 50 states
Brand:
ES#:
2864616
Mfg#:
GFBT9351
EO#:
D-844
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Availability:
In Stock
In Stock
VW/Audi Atmospheric Diverter Valve Spacer - Black
Let your turbo blow off some air for an exhilarating driving experience!
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Brand:
ES#:
3551289
Mfg#:
025254ECS01-01
Blow Off Valve Kit
Direct bolt on without worry of a check-engine light
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Brand:
ES#:
2862867
Mfg#:
CTSBV00093
Performance Ignition Service Kit
Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark!
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CARB certified for sale in all 50 states
CARB certified for sale in all 50 states
Brand:
ES#:
4033282
Mfg#:
MS100192KT3KT
EO#:
D-783-5
Performance Baffled Oil Catch Can System
Keep your intake tract clean and carbon free
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Brand:
ES#:
3194688
Mfg#:
019205ECS01KT
Audi B9 A4 2.0T Valved Exhaust System - Cat Back
Max gains of +16 WHP and +17 WTQ on our B9 A4 equipped with a Luft-Technik intake, ECS Intercooler/charge pipes, and a stage 1 tune!
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For vehicles up through the 2018 model year only (Pre-Facelift)
For vehicles up through the 2018 model year only (Pre-Facelift)
Brand:
ES#:
4488077
Mfg#:
021275ECS01
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Availability:
Ships on Nov 13, 2026
Ships on Nov 13, 2026
Cat-Back Exhaust System - Road+ (Semi-Resonated)
2.76" stainless steel with dual GT100 polished tips
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Brand:
ES#:
3176673
Mfg#:
SSXAU612
Audi B9 A4/A5 2.0T Center Resonator Delete
Add an aggressive exhaust sound with this Resonator Delete Pipe Kit! Deletes rear-most resonator.
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Brand:
ES#:
3576157
Mfg#:
023492ECS01KT
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Availability:
In Stock at Vendor
In Stock at Vendor
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
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Brand:
ES#:
3476949
Mfg#:
019490ECS01KT
Billet Aluminum Transmission Mount Insert
This billet aluminum insert is designed to fill the large void in the factory transmission mount
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Brand:
ES#:
3176060
Mfg#:
034-509-4053
Transmission Mount Bushing Insert Kit
Decrease transmission mount slop for better drivetrain response!
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Brand:
ES#:
3170153
Mfg#:
019209ECS01
Clutch Masters FX400 Clutch Kit & Single Mass Flywheel
Features a Heavy duty pressure plate, Full-face ceramic lined sprung clutch disc, and a Steel Single Mass Flywheel
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Brand:
ES#:
3979038
Mfg#:
02390-HDCL-SK
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Availability:
Ships in 7 Business Days
Ships in 7 Business Days
Audi B9 A4/S4 Front Lip Spoiler - Gloss Black
Upgrade your exterior styling!
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Brand:
ES#:
4147652
Mfg#:
028802ECS01KT
Carbon Fiber Front Lip Spoiler - Audi B9 A4/S4
Hand-laid carbon fiber to upgrade your exterior styling
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Brand:
ES#:
3146390
Mfg#:
019196ECS01A
Audi B9 A4 S-Line Pre-Facelift Rear Diffuser - Gloss Black
Add some aggressive styling to your Audi!
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Fits pre-facelift, S-line models (up to 2018), without integrated tips in the rear valance
Fits pre-facelift, S-line models (up to 2018), without integrated tips in the rear valance
Brand:
ES#:
4265351
Mfg#:
008480LA01
Carbon Fiber Rear Diffuser - Audi B9 A4
Hand-laid carbon fiber to upgrade your exterior styling
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Brand:
ES#:
3145741
Mfg#:
019193ECS01A
Audi B9 S4/A4 Trunk Spoiler - Gloss Black
Add some aggressive styling to your Audi!
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Brand:
ES#:
3981207
Mfg#:
028801ECS01
Carbon Fiber Trunk Spoiler - Audi B9 A4/S4
Add a touch of style and real carbon fiber to your Audi
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Brand:
ES#:
3141741
Mfg#:
019220ECS01A
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
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Brand:
ES#:
3411957
Mfg#:
019207ECS01KT